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What is the process in which bacteria take up pieces of DNA from their environment?

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What is the process in which bacteria take up pieces of DNA from their environment?

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Identify the individual who invented the process of removing bacteria cells from food and liquids such as milk, cheese, and juice.

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Identify the individual who invented the process of removing bacteria cells from food and liquids such as milk, cheese, and juice.

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Which of the following best describes a characteristic of Fungi that differentiates them from Bacteria?

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Which of the following best describes a characteristic of Fungi that differentiates them from Bacteria?

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WORTH 15 FOR 2 EASY QUESTIONS MULTIPLE CHOICE SECOND QUESTIONS EVEN EASIER THAN THE FIRST IM PRETTY SURE THE ANSWER IS C JUST CHECKING Which of the following conditions would likely prevent the assembly and survival of new kinds of organic molecules on Earth today? A. the presence of bacteria and other life forms B. the presence of carbon dioxide C. the supply of atoms that serve as raw material D. the light and warmth from the sun 2. Several different species make up a A. family. B. genus. C. kingdom. D. phylum.

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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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What is thought to be true about the three domains of living things? A. They diverged from a common ancestor before the evolution of the main groups of eukaryotes. B. They diverged from a common ancestor fairly recently. C. They did not have a common ancestor. D. Domains Bacteria and Archaea evolved after the main groups of eukaryotes.

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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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_______ is a unicellular infectious agent. Fungi Virus Parasite Bacteria.

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_______ is a unicellular infectious agent. Fungi Virus Parasite Bacteria.

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A colony of bacteria is growing exponentially according to the function below where t is in hours. about how many will it take for the population to reach 100

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A colony of bacteria is growing exponentially according to the function below where t is in hours. about how many will it take for the population to reach 100

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Which of the following aren’t eukaryotes? plants bacteria animals fungi

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In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the inside of the coat without being absorbed, where the water will absorb the heat instead of themselves, and will cool the through evaporative cooling (heat release through evaporation)

In a deciduous forest, there is much colder temperatures, and significantly less rainfall. These animals would likely want a thicker water-proof coat. This is because the thicker coat would allow heat to become trapped, keeping them warm in the winter, and the water-proof coating prevents water from freezing in their fur, making them colder.

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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?

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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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Bacterial colonies can triple in size every 4 days. if you start with 150 bacteria microorganisms, how large would the colony be after 16 days?

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Answer:

3 hours.          

Step-by-step explanation:

Let x be the time taken by shoe repairman to repair one pair.

We have been given that his assistant, who takes twice as long to repair a pair of shoes. So time taken by his assistant to repair one pair of shoes would be 2x.

The number of pair of shoes repaired by repairman in one hour would be frac{1}{x}.

The number of pair of shoes repaired by assistant in one hour would be frac{1}{2x}.

We have been given that together they can fix 16 pairs of shoes in an eight-hour day. We can represent this information in an equation as:

frac{1}{x}+frac{1}{2x}=frac{8}{16}

frac{1}{x}+frac{1}{2x}=frac{1}{2}

Let us have a common denominator.

frac{2*1}{2*x}+frac{1}{2x}=frac{1}{2}

frac{2}{2x}+frac{1}{2x}=frac{1}{2}

frac{2+1}{2x}=frac{1}{2}

frac{3}{2x}=frac{1}{2}  

Upon cross multiplying our equation we will get,

2x*1=3*2

2x=3*2

frac{2x}{2}=frac{3*2}{2}

x=3

Therefore, it take 3 hours for the repairman to fix one pair of shoes by himself.

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Calcium is required for bacteria because it

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Vitamin K is a fat-soluble vitamin that is synthesized by intestinal bacteria.

Further Explanation:

Vitamin is essential nutrient present in our body to support the important function of the body. Vitamins are divided into two categories;

   ⦁ Water-soluble vitamins

   ⦁ Fat-soluble vitamins

Vitamin B family and vitamin C come under water-soluble vitamin. Vitamin A, E, D, K is an example of fat-soluble vitamin.

Vitamin K is of two types;

   ⦁ Vitamin $$left({{{rm{K}}_{rm{1}}}}right)$$ called phylloquinone

   ⦁ Vitamin $$left({{{rm{K}}_{rm{2}}}}right)$$ called menaquinones

Vitamin $$left({{{rm{K}}_{rm{1}}}}right)$$ produced by plant and present in leafy vegetables. The human intestine contains bacteria which convert Vitamin $$left({{{rm{K}}_{rm{1}}}}right)$$ into vitamin $$left({{{rm{K}}_{rm{2}}}}right)$$. Bacteria also attaché isoprene unit to vitamin $$left({{{rm{K}}_{rm{2}}}}right)$$ and produce many forms.

Roles of vitamin K are:

   ⦁ To help in blood clotting.

   ⦁ To help in bone mineralization.

   ⦁ To act as a coenzyme for blood clotting.

Deficiency of vitamin K can cause excessive bleeding.

Diseases caused due to vitamin K deficiency are:

   ⦁ Hemorrhage

   ⦁ Osteoporosis

   ⦁ Chronic heart disease

   ⦁ Aortic calcification

Learn more:

    ⦁ Learn more about eukaryotic cell

       brainly.com/question/10767798

    ⦁ Learn more about minerals brainly.com/question/2817889

    ⦁ Learn more about heart function brainly.com/question/7301375

Answer Details:

Grade: High School

Subject: Biology

Chapter: Biomolecules

Keywords:

Phylloquinone, menaquinones, bone mineralization, blood clotting, isoprenoid tissue, vitamin K, fat-soluble vitamin, water-soluble vitamin, hemorrhage, osteoporosis.

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Bacteria reproduce asexually, whereas most plants and animals reproduce sexually. Which is the better method?

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In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the inside of the coat without being absorbed, where the water will absorb the heat instead of themselves, and will cool the through evaporative cooling (heat release through evaporation)

In a deciduous forest, there is much colder temperatures, and significantly less rainfall. These animals would likely want a thicker water-proof coat. This is because the thicker coat would allow heat to become trapped, keeping them warm in the winter, and the water-proof coating prevents water from freezing in their fur, making them colder.

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A bacterial culture grown in a glucose-peptide medium causes the ph to increase. the bacteria are most likely fermenting the glucose. oxidizing the glucose. using the peptides. not growing.

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The correct answer to this would be:

“inability of many medium ground finches to feed on large,
hard seeds”

The medium ground finches feed on seeds. However, the birds
have two variations in the bill shape: some birds have wide, deep bills while others
have thinner bills. The large-billed birds feed more proficiently on large,
hard seeds, while the smaller billed birds feed more proficiently on small,
soft seeds. The reduction in number started in 1977, when a drought period
altered vegetation on the island. Due to this event, the number of seeds
declined dramatically; the decline in small, soft seeds was larger than the
decline in large, hard seeds. The large-billed birds were able to endure better
than the small-billed birds thus resulting in decline in number.

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You discovered a unicellular organism that lacks a nucleus and peptidoglycan. you suspect the organism is in the group animalia. archaea. bacteria. fungi. plantae.

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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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A culture started with 5000 bacteria. after 2 hours, it grew to 6500 bacteria. Predict how many bacteria will be present after 18 hrs

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Answer:

3 hours.          

Step-by-step explanation:

Let x be the time taken by shoe repairman to repair one pair.

We have been given that his assistant, who takes twice as long to repair a pair of shoes. So time taken by his assistant to repair one pair of shoes would be 2x.

The number of pair of shoes repaired by repairman in one hour would be frac{1}{x}.

The number of pair of shoes repaired by assistant in one hour would be frac{1}{2x}.

We have been given that together they can fix 16 pairs of shoes in an eight-hour day. We can represent this information in an equation as:

frac{1}{x}+frac{1}{2x}=frac{8}{16}

frac{1}{x}+frac{1}{2x}=frac{1}{2}

Let us have a common denominator.

frac{2*1}{2*x}+frac{1}{2x}=frac{1}{2}

frac{2}{2x}+frac{1}{2x}=frac{1}{2}

frac{2+1}{2x}=frac{1}{2}

frac{3}{2x}=frac{1}{2}  

Upon cross multiplying our equation we will get,

2x*1=3*2

2x=3*2

frac{2x}{2}=frac{3*2}{2}

x=3

Therefore, it take 3 hours for the repairman to fix one pair of shoes by himself.

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What is the common feature of domain Archea and domain bacteria

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This feature of DNA is termed complimentary base pairing, in that the base that compliments a certain base, say A, is always paired with base T, and likewise every T has its pair partner always as A. The same holds true with C with G, and vice versa.

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What pathogen is often controlled by beneficial bacteria

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What pathogen is often controlled by beneficial bacteria

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Antibodies are produced by: A. saliva B. neurons C. lymphocytes D. bacteria

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Antibodies are produced by: A. saliva B. neurons C. lymphocytes D. bacteria

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A lab technician needs to clean medical instruments that have been exposed to bacteria. Which electromagnetic wave would be most useful for this task? A ) infrared B ) radio C) ultraviolet D) microwave

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A lab technician needs to clean medical instruments that have been exposed to bacteria. Which electromagnetic wave would be most useful for this task? A ) infrared B ) radio C) ultraviolet D) microwave

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A change in a sequence of DNA bases in a bacterial cell has resulted in a mutation. This mutation has increased the ability of the bacteria to break down and digest organic molecules in the environment. Bacteria with this mutation are better able to find and utilize food sources. According to the theory of natural selection, what is MOST likely to occur in future generations of this bacteria? A) The relative frequency of the mutation will increase as time passes. B) Because the mutation has changed the DNA of the bacteria, a new species will be formed. C) Because the mutation is abnormal, the mutation will become more rare with every passing generation. D) Bacteria with the mutation will increase in number until the food supply is exhausted, causing the bacteria to become extinct.

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Answer:

The correct answer would be B. CO, which comes from fossil fuel–powered engines, such as cars.

As the name suggests the primary pollutant is defined as the pollutant emitted directly from the source. For example, carbon monoxide which is produced due to incomplete combustion is emitted directly from cars, buses et cetera.

In contrast, secondary pollutant refers to the pollutant which is formed after reacting with other pollutants in the atmosphere. For example, nitrogen dioxide which is formed when NO reacts with oxygen, acid rain which is formed when nitrogen dioxide and sulfur dioxide reacts with water present in atmosphere et cetera.

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How are bacteria beneficial to the body? a. they provide us with needed nutrients c. they invade sterile regions in our body b. they form biofilms d. they fight the immune system

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The synthesis of protein takes place in two basic steps: transcription and translation. At the time of transcription, the information encrypted in DNA is reproduced in mRNA and the mRNA moves out of the cell’s nucleus into the cytoplasm. After this the process of protein synthesis, that is, translation takes place. The following are the steps for protein synthesis:  

1. RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.  

2. mRNA is transported from the nucleus of the cell to the ribosomes of the cell.  

3. mRNA joins the ribosome, and the anticodons from tRNA join mRNA to produce a chain of amino acids.  

4. A chain of amino acids is formed from peptide bonds, creating a protein.  

5. Once the protein is made, the gene for a particular trait is expressed.  

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A scientist counts 25 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 25 ∙ 3x models the number of bacteria after x hours. Estimate when there will be about 1170 bacteria in the culture

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A scientist counts 25 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 25 ∙ 3x models the number of bacteria after x hours. Estimate when there will be about 1170 bacteria in the culture

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Archaea are different from bacteria in that Archaea

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Ans.

Pathogens can be defined as infectious agents that cause illness or diseases to their host organisms. Pathogens can be virus, bacteria, worms, fungi, or protozoa.

All pathogens have potential to cause disease and they can be fatal that cause life-threatening diseases, such as Ebola virus. Pathogens can be treated bu drugs or are eliminated by immune responses of host body.

Thus, the correct options are ‘are disease-causing microorganisms’, and ‘can be fatal.’

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In a recent experiment, anti-bacterial hand sanitizer was compared to hand soap. Students washed their hands using the sanitizer or soap and warm water for two minutes; then they dried their hands with a paper towel. The standard of comparison was rubbing hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then drying with a paper towel. The sanitizer advertisement claimed to kill bacteria more effectively than any soap. After washing, hands were swabbed and then the swab applied to a culture plate and incubated. Finally, the bacterial cultures were counted and recorded in the data table. Students concluded that the hand sanitizer was most effective in killing bacteria. How would you respond to the students’ conclusion?

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Answer: The correct answer is option D.

Explanation: All these processes are the physical processes which happen during the phase change of matter.

1. Melting: In this process, water changes its state from solid to liquid. In solid, particles were orderly arranged but in liquid, the particles went apart from each other and orderly arrangement is lost.

2. Condensation: In this process, water changes its state from gas to liquid. In gaseous state, the particles were randomly arranged but in liquid, this random arrangement changes to some orderly arrangement.

3. Freezing: In this process, water changes its state from liquid to solid. In liquid state, the particles were less orderly arranged but in solid, this arrangement changes to more orderly arrangement.

4. Boiling: In this process, water changes its state from liquid to gas. In liquid state, the particles were orderly arranged but in gaseous state, this orderly arrangement changes to random arrangement.

Hence, in boiling process, the particles are least orderly arranged (particles have a lot of space between them) and this is the correct option.

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is to keep infectious microorganisms, such as certain bacteria, viruses, and fungi, out of the body, and to destroy any infectious microorganisms that do invade the body.

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is to keep infectious microorganisms, such as certain bacteria, viruses, and fungi, out of the body, and to destroy any infectious microorganisms that do invade the body.

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