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Describe an example where humans commercially utilize anaerobic respiration; be specific about the purpose, the organisms used and the products.


Anaerobic respirations are typically used in fermentation processes.

Commercially, there is lactobacilli at work with production of 
yogurt, kimchi, sauercrout, sour beer, and sour dough bread.

This latter have lactobacilli and yeast (Candida milleri) in the ratio of 100:1 in San Francisco’s sour dough bread, which makes it unique because different locations have different yeast species.

Then there is yeast at work in alcohol fermentation.
Example,  Saccharomyces cerevisiae is responsible for wine and ales.  It is also used in bread making (98% of the alcohol vaporizes during baking, only the CO2 produced is useful for making bread light and airy).
Note: for bread and wine making, different strains are used.

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The fossil record clearly shows that ________. the fossil record clearly shows that ________. large complex organisms evolved long before simple. nearly all species that have existed in the past still exist today. all species evolve from pre-existing species. new species appear suddenly and fully differentiated, without an ancestral species. several different species can hybridize to produce a single new species


Answered by answersmine AT 22/10/2019 – 02:35 AM

I think the answer is all species evolve from pre-existing species. This was based on Charles Darwin’s Theory of Evolution which he learned during his expeditions.He identified that some fossils have similarities with other existing animals, in which he believed were a part of adaptation in order to survive.

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Which of the following statements is false? The number of chromosomes is different in different organisms. There are more genes in a cell than there are chromosomes. A single gene can only influence a single trait. The karyotypes for a male human and a female human look different.



Which of the following statements is false? The number of chromosomes is different in different organisms. There are more genes in a cell than there are chromosomes. A single gene can only influence a single trait. The karyotypes for a male human and a female human look different.

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Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Turner syndrome occurs when a female has an incomplete set of sex chromosomes. Symptoms of Turner syndrome include swollen hands and feet, short stature, and infertility. Which type of chromosomal mutation is responsible for causing Turner syndrome


Aneuploidy is the type of chromosomal mutation that is responsible for causing Turner syndrome.

Aneuploidy is a type of chromosomal mutation in which there is presence of an abnormal number of chromosomes in a cell. The chromosomes may be incomplete (missing) or excessive (extra). For example, if a human cell had 42 sex chromosomes instead of 46, or it had 48 chromosomes instead of 46, it is said to be anueploidic in nature. Aneuploidy occurs during cell division when there is improper separation of the chromosomes between the two cells. Aneuploidy is responsible for many genetic disorders including Turner syndrome.

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Which organisms would MOST likely be adapted to the open ocean? A. frogs B. dolphins C. alligators D.hippopotami


Well which one tends to live around deep waters like the open ocean?

Frogs are amphibians, meaning they need land. The open ocean does not have land.

Dolphins live in and travel around the ocean, not needing land and capable of swimming great depths so they are capable of living in the open ocean.

Alligators live in areas with shallow waters where they can cool down and hide to capture unsuspecting prey. They need to breathe every now and then and even though they are fantastic swimmers in rivers, they can’t go too deep. They also need land to lay their eggs and mate, so the open ocean is not the best option for an alligator.

Hippopotami also live in shallow water like alligators. And like alligators, they need to breathe every now and then and they can’t go too deep in water. Rivers are great for them, but they won’t last too long in an open ocean.

Thus, the organism most likely adapted to the open ocean are dolphins.

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Which of the following was an early realization that gave rise to Darwin’s theory of natural selection? A. The earth is younger than previously thought. B. The earth and its organisms have changed through time. C. Organisms do not appear to be closely related. D. Most organisms share the same habitat.


Your answer is B. The earth and its organisms have changed through time

it is not:

A) because Darwin thought the world was much older than was previously thought

C) because Darwin found that many had similar charecteristics

D) NOT EVERY ORGANISM IS IN THE SAME PLACE, CLIMATE, etc

hope this helps 😀

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Which of the following is not true about the distribution of species? a. A species’ native range does not include areas where it was introduced by humans. b. Some species have a range they inhabit only for breeding. c. Seasonal ranges include areas where species are found for part of the year. d. All the organisms in an ecosystem share distribution patterns.


Answer:

d. All the organisms in an ecosystem share distribution patterns.

Explanation:

Native range is what is known in biology as the areas where a species is naturally found, not places were humans introduced them, species have some range only for breeding, for example some frogs only go into the rapids for breeding, and not for living or hunting, and seasonal ranges are areas where the species are found for a part of the year, for example the butterflies that migrate south to Mexico on the coldest months of the year and then come back to the United States for the warm summer, the only one that is not true is that all the organisms in an ecosystem share distribution patterns.

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What is the name for a complex organized group of organisms ?


System

Systems biology is the investigation of methods of biological elements, which may be particles, cells, bodies or entire species in a complex organised group. Living arrangements are powerful and complicated, and their response may be difficult to predict from the characteristics of different organisms.

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What is a biological control for pest management? a. some members of the pest population are sterilized b. sexual attractants lure pest species to traps c. predators, parasites, or disease organisms are released to reduce pest populations d. harvested foods are exposed to ionizing radiation e. genetic engineering develops pest-resistant crops?



What is a biological control for pest management? a. some members of the pest population are sterilized b. sexual attractants lure pest species to traps c. predators, parasites, or disease organisms are released to reduce pest populations d. harvested foods are exposed to ionizing radiation e. genetic engineering develops pest-resistant crops?

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What do biologists use to establish whether or not two organisms are of the same species



What do biologists use to establish whether or not two organisms are of the same species

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What is the most widely accepted biological definition for a species? a group of closely related organisms with the capacity to interbreed and produce fertile offspring a group of organisms that cannot interbreed or produce fertile offspring a group of related organisms that can interbreed a group of unrelated organisms that can interbreed


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Which kingdom has organisms that are NOT made of eukaryotic cells? Eubacteria Protista Plantae Animalia


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 of the following best describes a species? a group of closely related organisms that can produce viable or fertile offspring a group of closely related organisms that can NOT produce viable/fertile offspring a group of closely related organisms that cannot produce any offspring a group of distantly related organisms that can produce infertile offspring



Which of the following best describes a species? a group of closely related organisms that can produce viable or fertile offspring a group of closely related organisms that can NOT produce viable/fertile offspring a group of closely related organisms that cannot produce any offspring a group of distantly related organisms that can produce infertile offspring

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In the three domain system, the domain Eukarya consists of all organisms that have which of the following?


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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Regarding survival of organisms, it was hypnotized that A.The tallest organisms survive B. The plainest organisms survive C. The slowest organisms survive D. The organisms best fitted to their environment survive.


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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What two categories did Greek philosopher Aristotle use to classify living organisms ?



What two categories did Greek philosopher Aristotle use to classify living organisms ?

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When organisms have a similar niche, __________ may occur.



When organisms have a similar niche, __________ may occur.

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Why plants have specialized organelles animals and bacteria do not. Do those organelles serve a special function not needed in the other organisms?


Answer: The correct answer is all of these.

Explanation:

Organic compounds are defined as the chemical compounds where one or more carbon atoms are covalently bonded to other atoms of hydrogen, oxygen or nitrogen.

They occur naturally in nature and the main sources of these organic compounds are petroleum, coal and natural gases.

Petroleum are the naturally occurring substances which contain organic compounds in the form of gases, liquid or semi-solid. Thus, they are a major source of organic compound.

Coal is also a form of fossil fuel which are the major source of organic compound.

Natural gas contains hydrocarbons and also is the major source of organic compounds.

Thus, the correct answer is all of these.

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A diploid organism has 10 chromosomes; how many gene combinations can occur in the organism’s gametes?



A diploid organism has 10 chromosomes; how many gene combinations can occur in the organism’s gametes?

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How do organisms get the energy they need?



How do organisms get the energy they need?

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According to the theory of _____, today’s organisms evolved from past organisms.


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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According to e. o. wilson, ________ refers to genetic variants among a single species, individuals within a species, communities of organisms, and ecosystems.



According to e. o. wilson, ________ refers to genetic variants among a single species, individuals within a species, communities of organisms, and ecosystems.

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How do fossil fuels form? a.decomposers remove fossil fuels from dead plants. b.bacteria fix carbon into fossil fuels. c.plants release fossil fuels in photosynthesis. d.dead organisms are compressed by dirt?



How do fossil fuels form? a.decomposers remove fossil fuels from dead plants. b.bacteria fix carbon into fossil fuels. c.plants release fossil fuels in photosynthesis. d.dead organisms are compressed by dirt?

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The biome with the most diverse communities of organisms is the



The biome with the most diverse communities of organisms is the

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Why might scientists be interested in making transgenic organisms? Transgenic organisms glow in the dark and provide a light source in dark places. Transgenic organisms can produce a desired product that may benefit other organisms. Transgenic organisms can be used to cut strands of DNA molecules into fragments. Transgenic organisms can be used as a medium to transfer foreign DNA into a host cell


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.