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rosijanka [135]
3 years ago
7

Exam Guidelines

Biology
1 answer:
monitta3 years ago
3 0

Answer:

O B. Restriction enzymes

Explanation:

Restriction enzymes has the ability to recognize specific DNA sequences and cut them in a specific manner in order to produced by the bacteria as a defense mechanism against foreign DNA containing substance such as viruses etc. This restriction enzyme is also called restriction endonucleases. This is a cloning tool that bacteria produced naturally in order to defend itself from the infection of virus.

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Nutria, Myocastor coypus, are large, semi-aquatic rodents native to South America. They were originally introduced in the U. S.
scZoUnD [109]

<u>Complete Question:</u>

Nutria, Myocastor coypus, are large, semi-aquatic rodents native to South America. They were originally introduced in the US in  1889 for their fur. When the nutria fur market collapsed in the 1940's, thousands of nutria were released into the wild by ranchers  who could no longer afford to keep them. Characteristics of the nutria include of those here EXCEPT

A. their status changed from introduced to invasive.

B. nutria affect the natural food web of the marshes.

C. nutria inflict permanent damage to marshes and other wetlands

D. nutria can only live in freshwater marshes in coastal areas along the Gulf

Coast.

<u>Correct Option:</u>

The characteristics of the nutria include of those here EXCEPT that "nutria can only live in freshwater marshes in coastal areas along the Gulf  Coast".

<u>Option: D</u>

<u>Explanation:</u>

Nutria survives not only in freshwater marshes but also in wetlands, and can respond to various environments reasonably easily. In aquatic habitats, the species flourish and migrate rapidly across rivers into coastal wetlands. Nutria harm prone ecosystems can be seen in many ways.

Beyond destroying plants and crops, nutria kills the channels of ditches, streams, and other water bodies. Even so, the irreversible harm that nutria can do to marshes and other wetlands is of utmost importance.  Nutria in these places rely on native plants which hold together wetland soil. This vegetation's degradation exacerbated the depletion of coastal marshes caused by sea level rise.

5 0
3 years ago
Which one of the following choices most accurately describes the difference between anaerobic and aerobic reactions?
Sphinxa [80]
I believe the answer would be <span> aerobic reactions require oxygen and anaerobic do not. From the word, aerobic itself, it would mean that the process requires the presence of oxygen for it to happen while the opposite is called an anaerobic process.</span>
3 0
3 years ago
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The physical features, since they have fur it was obviously cold. Since they had tusks they were constantly hunted.
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DerKrebs [107]

Answer:

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Explanation:

8 0
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List 3 words to describe<br> speciation that occurs through<br> gradualism
SashulF [63]

Answer:

Separation, Adaptation, Reproductive Isolation

Explanation:

5 0
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