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Which structures are found in both animal and plant cells? Check all that apply.

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Which structures are found in both animal and plant cells? Check all that apply.

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Structures that extend from the lateral walls of the nasal cavity are called nasal

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The first call for additional help should be done before birth. If there is any potential risk factor of neonatal resuscitation, then help is needed.

 

EXPLANATION

First additional help is needed when the healthcare identifies factor risks of neonatal resuscitation. Neonatal resuscitation is intervention after the baby is born. This additional help is to support the heartbeat and its breathing.

 

Inside the womb, the baby got oxygen from the placenta. Placenta also supplies nutrition to the blood and remove carbon dioxide. After the baby is born, that function is replaced by the lungs. Baby’s lungs will have to remove the carbon dioxide and supply oxygen to the blood. This transition will happen when the umbilical cord is tied off or clamped, so the baby will have its first breath using lungs to exchange gas.  

 

A lot of babies have gone through this without needing help or intervention, but some babies might need this. Neonatal resuscitation will help with breathing, establishing airflow, and also circulation. The first few moments of a baby’s life are the most important.  

 

Effective emergency care during this transition might be needed to prevent lifelong consequences. A person who will do the neonatal resuscitation requires a good amount of knowledge and protocols, also essential pieces of equipment, before starting the procedure. If the baby is identified as needing neonatal resuscitation before birth, then first additional help is needed.

LEARN MORE

If you’re interested in learning more about this topic, we recommend you to also take a look at the following questions:

Who is allowed to do neonatal resuscitation? brainly.com/question/3923472

Minimum requirement of care for the newborn at birth? brainly.com/question/4426371

KEYWORD: healthcare, first additional help, neonatal resuscitation

Subject: Health

Class: College

Subchapter: Neonatal Resuscitation

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Describe specialized feeding structures of parasitic platyhelminthes

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Describe specialized feeding structures of parasitic platyhelminthes

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Which cellular structures that you observed using the microscope are common to all eukaryotes and prokaryotes

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Which cellular structures that you observed using the microscope are common to all eukaryotes and prokaryotes

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Organelles areresponsible for producing power for the cell .tiny structures in the cell that carry out the cells activities.responsible for digestion in the cell.found outside of the membrane

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The right answer is Transgenic organisms can produce a desired product that may benefit other organisms.

A transgenic organism contains DNA combining  stably integrated in all its cells. In other words, the organism, be it a plant, an animal or a microorganism, has a new piece of DNA embedded in it. a chromosome in each of its cells. This “new piece” of DNA usually contains a gene from another organism (plant, animal or other) that has been modified to be expressed in the new  organization. A transgenic organism may even possess the DNA of another organism of the same species. The inserted gene can be called the transgene.

Currently, diabetics are treated by injecting insulin from either a healthy human donor or cultures of genetically modified (transgenic) bacteria that secrete the protein.

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What is the structures and functions of the circulatory system?

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Structures in the dermis that help regulate body temperature are

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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Which cell structures cause the outer surface of the rough endoplasmic reticulum to appear rough?

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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Although they are not glands, these body structures secrete a hormone called B-type natriuretic peptide (BNP).

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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The sensory structures that enable the brains of most invertebrates to determine the orientation of the body with respect to gravity are calle

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Molecules that have the same chemical formula but have different molecular structures are

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The right answer is Transgenic organisms can produce a desired product that may benefit other organisms.

A transgenic organism contains DNA combining  stably integrated in all its cells. In other words, the organism, be it a plant, an animal or a microorganism, has a new piece of DNA embedded in it. a chromosome in each of its cells. This “new piece” of DNA usually contains a gene from another organism (plant, animal or other) that has been modified to be expressed in the new  organization. A transgenic organism may even possess the DNA of another organism of the same species. The inserted gene can be called the transgene.

Currently, diabetics are treated by injecting insulin from either a healthy human donor or cultures of genetically modified (transgenic) bacteria that secrete the protein.

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The connectionist view of memory _____. suggests that memories are large knowledge structures advocates that people forget not because memories are lost from storage but because other information gets in the way of what they want to remember proposes that memories are organized only to the extent that neurons, the connections among them, and their activity are organized states that memory storage involves three separate systems: sensory memory, short-term memory, and long-term memory

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Some sport activities you can engage in include: swimming, running, walking, dancing , cycling skipping, different kind of ball games and jumping. Physical activity improve physical health by strengthening the heart muscles, lowering the blood pressure, raising the level of good cholesterol in your body, increasing blood flow, etc. All these work together to reduce the risks of having diseases such as heart attack, high blood pressure, stroke, etc. Emotionally, physical activity promotes improve mood and mental health. 

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Describe essential properties used to define life. which prokaryotic cell structures are involved in carrying out these life processes? explain your answer.

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Climate change
Greenhouse effect

Some heat energy from the Earth’s surface escapes into space. If too much heat energy escaped, the planet would be very cold. However some gases in the atmosphere can trap escaping heat energy, causing some of it to pass back to the surface.

These are called greenhouse gases, and they keep our planet warm, which is a good thing. Carbon dioxide is an important greenhouse gas.

Increasing carbon dioxide levels

Humans burn fossil fuels such as oil, coal and natural gas. The energy released is used to power cars and other machines, to generate electricity, and to keep buildings warm. The burning fuel releases waste gases, including carbon dioxide. As the human population increases, more fuel is used, and more carbon dioxide is released.

Global warming

The extra carbon dioxide increases the greenhouse effect. More heat is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. The increase in global temperature this causes is called global warming.

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Groups are select one: a. social structures that have an existence apart from the particular relationships people have with one another. b. an example of the idea that the whole is greater than the sum of its parts. c. an example of the idea that

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Packet Forgery type of cybercriminal attack would interfere with established network communication through the use of constructed packets so that the packets look like they are part of the normal communication.

Further Explanation:

Packet Forgery:

Packet Forgery (otherwise called producing bundles or parodying parcels) in PC organizing, is the way toward meddling with a set up system association by methods for developing bundles to show up as though they are a piece of the ordinary correspondence stream.  

Packet Forgery attack:

Packet Forgery is one way programmers attempt to disturb or capture parcels from effectively settled system associations. The manner in which they do this is by infusing their very own bundles into the information stream. The bundles infused by the programmer will show up as ordinary parcels.  

Packet Forgery Nessus:  

A Network Interface Card (NIC) that is equipped for parcel falsification will be expected to run filters. Bundle Forgery is fundamental for some sorts of sweeps, including basic Host Discovery filters, as it permits Nessus to decide if targets are alive, and encourages port checking.  

Packet Forgery works:  

Packet Forgery (otherwise called fashioning parcels or caricaturing bundles) in PC organizing, is the way toward meddling with a set up system association by methods for developing bundles to show up as though they are a piece of the ordinary correspondence stream.

Subject: business

Level: High School

Keywords: Packet Forgery, Packet Forgery attack, packet forgery Nessus, packet forgery works.  

Learn more about evolution on:

brainly.com/question/3040628

brainly.com/question/12850836

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Which of these Roman developments resulted in the ability to build larger and more stable structures? A) aqueduct B) arch C) columns D) stairs

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The subject of civil wars in the African continent, especially as product of the unbriddled and uncontrolled desire to extract from this land its rich mineral resources, has gone on for decades, and even centuries. But among the many conflicts around this subdeveloped continent, lays the one that originated in three different African nations: Angola, Sierra Leone and Zimbabwe, and the reason for it? B: Diamonds; better known as bloody diamonds. These rough diamonds, that are richly found in these three nations, most especially, became the fuel that have kept many illegal and legal organization going. And conflict arose between different factions for the control of this trade. Beginning in 1975, with the Angolan conflict that started ever since its freedom from Portugal, precisely because of the desire for both national control, and control of the diamond trade, these conflicts have continued through time, bleeding out the countries. The next conflict arose in Zimbabwe, in the 1980´s and it hasn´t stopped, as power over the government and all its trades, including that of diamonds, has been in the hands of one man: Robert Mugabe. Finally, there is the conflict in Sierra Leone, and it happened between 1991 and 2002.

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When a person is experiencing heartburn, he or she feels a burning sensation in the throat and midchest. Think about the structures of the digestive system. What most likely causes the burning sensation? The muscle at the end of the esophagus is not able to close, which allows stomach acid and digested food to go back up into the esophagus. The villi in the small intestine are producing extra acid that is then concentrated at the pharynx. The esophagus goes into muscle spasms while the salivary glands produce excess acid. Too much water absorption in the large intestine disrupts the pH of the digestive system, causing acid to reenter the stomach.

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The correct answer is D.  They are both vascular plants, but conifers are gymnosperms, and anthophytes are angiosperms

Anthophytes are the angiosperms or flowering plants which is the largest phylum of plants whereas, conifers such as Pines, Fir are the members of gymnosperms. Both are vascular plants, reproduce sexually to produce seeds but in conifers seed are not enclosed in fruits, thus seeds are naked in them. Anthophytes seeds are enclosed in fruits.  

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In which of the female’s reproductive structures would embryonic or fetal pigs be found

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Correct answer: D). Soil is made from rock and organic material.

The soil is defined as the loose sediment, it is the end result of rock weathering. It is formed by the combination of weathered rock along with the organic material that is known to support the plant growth. It is made up of clay, silt, sand, and dead and decayed organic material. Water and air are the other ingredients that are present in the soil.

Hence, the correct answer would be option D.

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Do puffer fish have vestigial structures? what are they?

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For the answer to the question above, there is no such thing as a non-living organism. Because organisms are only a term for living things.

1. Cellular structure: all living organisms generally have a cellular structure i.e., they are made up of one or more cells. 
The protoplasm is the physical basis of life. 

There is no such fundamental and structural unit called cell in non-living things. 

2. metabolism : The various life processes taking place within the body of an organism is collectively termed metabolism. The metabolic processes can occur only in living organisms and not in nonliving things. 

3. growth, repair and death : Growth consists of the living organism absorbing materials entirely different from those that make up its body and convert them into body building substances. Growth in non-living substances such as crystal is at the cost of material similar to that of which it consists. Same substance is added without conversion. 
The growth is permanent, irreversible process in living organisms but can be reversed in non-living things. 
Growth is different in different parts of the body of an organism. Growth is uniform throughout in the non-living things. 

Respiration, nutrition,excretion, movement,irritability, reproduction, life span, death, evolvability are other properties of a living organism.

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Environments are covered with manmade structures like roads, buildings, and sewers. Green spaces such as parks, backyards, and undeveloped lots are scattered in among the developed areas instead of all connected together. Plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. These are all ways that . a.humans have intervened to both manage and manipulate the environment to ensure species survival b.nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem c.cities have been form to keep wildlife in public

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Posted in Biology

Answer : Option B) Nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem.

Explanation : From the above information given, it can be simply concluded that humans have changed the environment around them. The human habitats are very different from the nonhuman life habitats. They have their own ecosystem designed for their comfort. This impacted the nonhuman life as they have different ecosystem in cities than in the forests.


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Posted in Biology

1. Do the location of landforms (mountains, trenches, and volcanoes), earthquakes, and mineral deposits have anything in common? A. No, their placement is scattered all over the globe B. Yes, most appear to occur on the edges of plates 2. What is the ring of fire (besides a song by Jonny Cash)? A. An area located in the Atlantic Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits B. An area located in the Pacific Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits C. An area located in the Indian Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits D. An area located in the Arctic Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits 3. How does a trench occur? A. When one plate is pushed underneath another plate B.When one plate gets too thin and collapses under another plate C. When a hot spot occurs at that location causing the lithosphere to weaken D. When a transform boundary ends 4. What type of convergent boundaries make mountain ranges? A. Oceanic – Oceanic B. Continental – Continental C. Continental – Oceanic 5. What type of boundaries make rift zones? A. Convergent B. Divergent C. Transform

1- B
2- all of them
3- A
4- B
5- B

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Posted in Biology

What is the primary function of most bacteria in a food web?

Answer:

The primary function of most of the bacteria in the food is to decompose the materials present in the environment.

The plants and animals that die in the environment is consumed by the bacteria so that the nutrients can be recycled in the soil.

These bacteria are present everywhere because all the living organism die a day.

The bacteria and fungi digests the organic part of the ecosystem. This is the primary function of the bacteria that is found in the food web.

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“The diagram shows the inside of a eukaryotic cell. Which process occurs in the structures that are labeled X? lactic acid fermentation alcohol fermentation glycolysis Krebs cycle”

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The diversity of proteins is caused by the mRNA codons and DNA. 
DNA has sequences that mRNA finds the pair for (ex. DNA says AGC, RNA says UCG) 
with that, they only come in 3 nucleotide increments. which is a codon 
one you have a codon, it goes thru tRNA to come out with an amino acid and a bunch of amino acids makes a polypeptide or protein 
It all depends on what the DNA’s code says to make… 
DNA says AUG, RNA makes that UAC which is the amino acid tyrosine 
did I help?

so basically 7

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What do the hair like structures called cilia allow the paramecium to do? A. hold on to it’s food B. send out sonar to locate food C. hold on to other organisms D. move

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It oxidies iron and inorganic sulfur compounds. The oxidation process can be harmful, as it produces sulfuric acid, which is a major pollutant. It has been suggested that T. ferrooxidans forms a symbiotic relationship with members of the genus Acidiphilium, a bacterial capable of iron reduction. Other species of Thiobacillus grow in water and sediment; there are both freshwater and marine strains.

The bacteria are usually found in rivers, canals, mine drainage effluents and mining areas. So there may be some source of these bacilli near their house.They require inorganic sources to grow and contain an enzyme called ferrous oxidase that allows them to metabolize iron.
They eat iron pipes corroding the pipes leading into households and produce a thick slime layer  biofilm.

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What are the parts of the dye molecules that affect the rf of the spots as they move up the tlc plate? please list several and explain why using lewis structures.

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Answer:

The best answer to the question: Which statements describe the structure of each type of macromolecule, would be: A, B and D. C would be the only option here whose structure, as proposed in the statement, does not meet the chemical composition criteria of an amino acid, which is the building block of proteins.

Explanation:

Macromolecules are basically the building blocks of human life. Of these our bodies depend entirely to carry out their different functions, and without them, there would not be life. These macromolecules are known as such because they are built from much smaller, and more basic chemical units. Essentially, there are 4 major types of macromolecules: carbohydrates, lipids, proteins, and nucleic acids (DNA and RNA). All of them have one thing in common, and that is the presence of carbon as their building block. The variable elements would be hydrogen, oxygen, nitrogen and in some cases, phosphorus. From the options in the question, and given the request of the statement, three of the proposed statements effectively describe the chemical structures of the building blocks for carbs, lipids and nucleic acids, but that is not so for the building blocks of proteins, amino acids. Amino acids are not just built from carbon and nitrogen only; they will also count with hydrogen in their structure.

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How do structures in living organisms compare with structures of non living things such as construction cranes , buildings, ships, airplanes, or bridges?

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Posted in Biology

Answer:

Living organisms has the ability to grow, reproduce and shows metabolic activities. The living organisms are made up of biomolecules and uses energy for their work. They shows respiration, digestion, transportation and excretion. They are made up of cells.

The non-living organisms like ships, buildings and aeroplanes does not show any growth and reproduction. These objects are made up of inorganic molecules and does not show any metabolic activities required for the maintenance of life. No cells are present in non living objects.


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Although most gray squirrels have gray fur, sometimes individuals with white or black fur are born. If a white-furred individual were born in a population of gray squirrels living in a Florida forest, what would be the most likely long-term consequence of its presence for the squirrel population if the forest remained unchanged for the next several generations?

  The presence of a white squirrel wouldn’t really have any long term effect on the squirrel population the forest in Florida. The reason for that is that the white squirrel, probably an albino, would have huge problems in its survival. The chances are very big that it will not be able to reach adulthood, and even if it did, it will be a short-lasting one.

  The short life span of the white squirrel will be due to its coloration, which will leave it without camouflage in the forest, thus making it an easy target for the predators. Also, the white squirrel, if it somehow manages to get to stage in its life to mate, it will be avoided by the other squirrels because it has a disadvantageous feature.

Posted in Biology

Woolly mammoths were grass-eating mammals that resembled elephants but with heavy coats, large tusks, and small ears that made them suited for extremely cold weather of the ice age. In addition to hunting by humans, which other conditions may have caused woolly mammoths to become less reproductively successful and eventually become extinct at the end of the last ice age?

As the ice age was nearing to an end, the woolly mammoths faced multiple problems.

One of them were the humans, that even though did not hunt them excessively, because they killed the young individuals were endangering the reproduction of the populations.

The climate suddenly changed. The environment was changing so quickly that the larger animals that were very specialized were not able to change quickly enough to survive in the new environment.

The available food changed, and the mammoths were not able to digest it properly, so that led to starvation, and also delaying of reproduction because the animals didn’t had enough food for themselves, yet alone for newborns.

All of these things combined, hampered the reproduction of the woolly mammoths, and led to their dying out.

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Posted in Biology

Compare and contrast the ways carbon and water cycle through the biosphere.

Carbon cycle-> carbon dioxide is given out by cell breath and creature relaxing 
– > this carbon dioxide is taken by plants and created into oxygen 
– > inevitably both the creature and the plant bites the dust and they transform over into carbon 
– > over a huge number of years this carbon transforms into fossil energizes and we separate it and utilize it for our vitality and powerplants 
– > these powerplants discharge carbon dioxide into air and taken up by plants and yeaa.. 
water cycle- – > water vanishes from the seas and lakes 
– > water transforms into mists as it goes higher up the environment cooling the water particles making them consolidate and goes down as rain 
– > some rain percolates(goes through) the dirt and remains there some permeate once more into the lakes and seas cycle begins over!!!! on a side note:the ones in the dirt are taken up by plants and are put n the air through their tree breathing or transpiration(where water particles are placed noticeable all around by plants)

Posted in Biology

Fifty seeds were selected at random from each of 5 bags of seeds,and were kept under standardised conditions favourable to germination.after 20 days,the number of seeds which germinated in each collection were counted and recorded as follows: bags:1,2,3,4,5 no of seeds germinated:40,48,42,39,41 what is the probability of germination of: 1)more than 40 seeds in a bag? 2)49 seeds in a bag? 3)more than 35 seeds in a bag?

Q1. The answer is 0.6

There are in total 5 bags. Number of bags in which more than 40 seeds germinated is 3 (bag 2, bag 3, and bag 5). So the probability of germination of more than 40 seeds in a bag is:
P = 3/5 = 6/10 = 0.6

Q2. The answer is 0.

There are in total 5 bags. Number of bags in which 49 seeds germinated is 0.
So the probability of germination of 49 seeds in a bag is:
P = 0/5 = 0

Q3. The answer is 1.

There are in total 5 bags. Number of bags in which more than 35 seeds germinated is 5 (all of them).
So the probability of germination of more than 35 seeds in a bag is:
P = 5/5 = 1

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Some organisms undergo asexual reproduction through mitosis, while others reproduce sexually, and their cells undergo meiosis to produce gametes. If there were drastic changes in temperature in an ecosystem , which process do you predict would be most beneficial to a species? A. Meiosis: It increases genetic variation, which helps ensure the species will survive. B. Meiosis: It produces more daughter cells, which increases the population of the species. C. Mitosis: It causes genetic mutations, which may be favorable to the species. D. Mitosis: It produces more offspring in a short time, which makes it likely that some will survive.

The answer is A. Meiosis: It increases genetic variation, which helps ensure the species will survive.

Meiosis increases genetic variation. This means there is a great variety of genotypes among the population. Hence, there are organisms able to survive in a wider range of temperature. If 

there were drastic changes in temperature in an ecosystem, some of the organisms will survive because their genotype allows them to live in such conditions. If there were no variety thanks to meiosis, all of the organisms would die. And that is not beneficial to a species.
Imagine on the other hand that mitosis occurred. Mitosis does not provide a variety of genotypes and all of the organism will be the same. 
If there were drastic changes in temperature in an ecosystem, all of the organisms would die because all of them could respond to the change in the same way.

Posted in Biology

Sucrose and lactose are disaccharides that have the same chemical formula, C12H22O11. However, these sugars have different characteristics and behave differently in chemical reactions. Which of the following generalizations can explain this? Disaccharides are used for different cellular processes, and they only take part in reactions in which they are needed. Disaccharides are different in structure because they are not made up of the same monosaccharides, and this gives them different properties. Disaccharides are made from the same monosaccharides, but the monosaccharides are arra

The answer is Disaccharides are different in structure because they are not made up of the same monosaccharides, and this gives them different properties.

Both sucrose and lactose are disaccharides, however, they are made up different monosaccharides:
Disaccharide = monosaccharide + monosaccharide
Sucrose = glucose + fructose
Lactose = glucose + 

galactose 

Since they have different structures, their characteristics and behaviour in chemical reactions must differ, too.

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PLZZ HELP FASSSSST 1. Which of the following eyects would you expect if red blood cells were shaped like neurons? (1 point) They would not be able to move as easily through capillaries. They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the body. They would become more eyective at picking up urea discarded by body cells. 2. Which of the following is not a function of the skeletal system? (1 point) supports the body works with other body systems to allow movement manufactures new blood cells sends signals to the brain 3. Which of the following body systems are involved in the first line of defense of the immune system against infection? (1 point) integumentary, digestive, respiratory nervous, circulatory, skeletal muscular, endocrine, urinary urinary, skeletal, integumentary 4. Which of the following sets of structures would be involved in ridding the body of unwanted urea? (1 point) sensory neuron, interneuron, spinal cord alveoli, atrium, cilia capillary, nephron, ureter brain, esophagus, small intestine 5. An infectious disease is a disease that (1 point) is caught because the weather turns cold. is caused by pathogens. can be spread only by bacteria. cannot be cured. 6. Which of the following statements is true regarding infectious agents? (1 point) Infectious agents are all too small to be seen without a microscope, and none can be classified as living. All infectious agents are living because they are all classified as microorganisms. Of all the infectious agents, only viruses are considered living because they actively inject their DNA or RNA into host cells. Viruses cannot be treated with antibiotics because they are not living organisms. 7. Which discovery in the 1800s led to the development of germ theory? (1 point) Vaccines could prevent a disease. Antibiotics exist that can be given to counteract an infection. Infection rates decline when health care professionals wash their hands in between seeing patients. Some diseases, such as cancer, are caused by chemical factors. 8. Follow a carbon atom in a piece of bread eaten by a boy. Which of the following describes a path that this atom could take? (1 point) mouth esophagus stomach large intestine blood body cell mouth esophagus stomach small intestine blood body cell mouth large intestine esophagus stomach blood body cell mouth esophagus small intestine stomach blood body cell 9. Which of the following sets of structures is innervated by the somatic nervous system? (1 point) esophagus, stomach, small intestine atrium, ventricle, arteries biceps, triceps, quadriceps diaphragm, bladder, large intestine 10. Which of the following cell types would you expect to increase in number azer a person becomes infected with a pathogen? (1 point) sensory neurons white blood cells epidermal cells red blood cells

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There are four variables which govern changes in population size.
births
deaths
immigration
emigration

A population gains individuals by birth and immigration and loses individuals by death and emigration.

Biotic Potential
Populations vary in their capacity to grow. The maximum rate at which a
population can increase when resources are unlimited and environmental
conditions are ideal is termed the population’s biotic potential. Each
species will have a different biotic potential due to variations in
the species’ reproductive span (how long an individual is capable of reproducing)
the frequency of reproduction (how often an individual can reproduce)
“litter size” (how many offspring are born each time)
survival rate (how many offspring survive to reproductive age)

There are always limits to population growth in nature. Populations
cannot grow exponentially indefinitely. Exploding populations always
reach a size limit imposed by the shortage of one or more factors such
as water, space, and nutrients or by adverse conditions such as disease,
drought and temperature extremes. The factors which act jointly to
limit a population’s growth are termed the environmental resistance. The interplay of biotic potential and density-dependent environmental resistance keeps a population in balance.
Carrying Capacity
For a given region, carrying capacity is the maximum number of
individuals of a given species that an area’s resources can sustain
indefinitely without significantly depleting or degrading those
resources. Determining the carrying capacities for most organisms is
fairly straightforward. For humans carrying capacity is much more
complicated. The definition is expanded to include not degrading our
cultural and social environments and not harming the physical
environment in ways that would adversely affect future generations.

For populations which grow exponentially, growth starts out slowly,
enters a rapid growth phase and then levels off when the carrying
capacity for that species has been reached. The size of the population
then fluctuates slightly above or below the carrying capacity.
Reproductive lag time may cause the population to overshoot the carrying
capacity temporarily. Reproductive lag time is the time required for
the birth rate to decline and the death rate to increase in response to
resource limits. In this scenario, the population will suffer a crash
or dieback to a lower level near the carrying capacity unless a large
number of individuals can emigrate to an area with more favorable
conditions. An area’s carrying capacity is not static. The carrying
capacity may be lowered by resource destruction and degradation during
an overshoot period or extended through technological and social
changes.

An example of dieback occurred in Ireland after a fungus infection
destroyed the potato crop in 1845. During this potato famine
approximately 1 million people died and 3 million people emigrated to
other countries. Increased food production due to improved agricultural
practices, control of many diseases by modern medicine and the use of
energy to make historically uninhabitable areas of Earth inhabitable are
examples of things which can extend carrying capacity. The question is
how long will we be able to keep increasing our population on a planet
with finite size and resources?

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Different plant and animal species have a great variety of body structures that help them survive and reproduce. Which of the following is also true?

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In order to understand this question and to answer it correctly, there are some definitions/terms that need to be acknowledged.

 Firstly, TEMPERATURE is defined as the average KINETIC ENERGY of a sample. So, in the question when the reference is made to the speed of the molecules, it can be translated to temperature. Thus, since the speed of the molecules decreases, then it can be said that the Temperature of the system decreases.

Secondly, according to Gay-Lussac Law, Pressure is directly proportional to Temperature when the volume is constant. As such, an increase in Pressure sees an increase in Temperature.

Based on what is known above, the statement “In a rigid container, when the speed of the gas molecules decreases, the pressure of the gas also decreases” is a true one.

Thus the answer is TRUE.

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