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Elenna [48]
3 years ago
5

The mass extinction occurring today differs from those that occurred in the past because

Biology
2 answers:
aksik [14]3 years ago
4 0
<span>A.) it is due mainly to the actions of one species
</span>
zheka24 [161]3 years ago
4 0

Answer:

It is due mainly to the actions of one species.

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________ is a process that creates genetic variety in cells. (2 points)
Zigmanuir [339]

Answer:

B

Explanation:

I believe it is meiosis because there are two parts in which it helps to increase genetic variety. In prophase 1, the genes cross over, which increases the variety. Also, the chromosomes are assigned randomly in Metaphase 1.

Hope this helps:)

4 0
3 years ago
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Which of the following outcomes is observed during Rabies virus pathogenesis?
Digiron [165]

Answer:

c) Negri bodies are a diagnostic sign of Rabies virus infection.

Explanation:

Rabies is an infection caused by rabies virus which affects the neurons and causes inflammation of the brain. It is a deadly disease and many animals are carriers of this disease like dogs, cats, raccoons, wolf, bats, fox, etc.  

It is diagnosed by the presence of Negri bodies in the cytoplasm of nerve cells. Negri bodies are inclusions that are round or oval shapes having a size between 0.25 to 27 μm. Negri bodies can be frequently diagnosed in Purkinje cells of the cerebellum and pyramidal cells of Ammon’s horn.  

Apart from these cells, they can be found in various ganglia, neurons of the tongue and other organs. So the correct answer is c.

6 0
3 years ago
PLEASE HELP !!!
agasfer [191]

Answer:

C

Explanation:

The definition of biotic potential is the maximum reproductive capacity of an organism under optimum environmental conditions.

7 0
3 years ago
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Proteins are made of _________ and the sequence of these determine how the protein will fold up and take shape, which ultimately
brilliants [131]

Answer:

B ) amino acids

Explanation:

B ) amino acids,

3 0
3 years ago
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Plants that have many periods of reprodution are called
Georgia [21]

Answer:

Plants that have many periods of reprodution are called perrenials.

~batmans wife dun dun dun....

8 0
3 years ago
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