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jekas [21]
3 years ago
8

What component of amino acid structure varies among different amino acids? the glycerol molecule that forms the backbone?

Biology
1 answer:
umka2103 [35]3 years ago
4 0
The R group varies, and it is the carbon-phosphate backbone
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C. an endangered species is one that is at risk of dying out, while an extinct species is one that no longer exists.
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3 years ago
Name the following phases of the cell cycle. Note: The pictures are in no particular order.
natita [175]

Answer:

Explanation:

  1. Anaphase
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In order, they would be 2, 4, 3, 1, 5.

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Geneticists have determined that the majority of individuals in an isolated island population have blood type
oee [108]

Question continuation;

..........type B. Type A is found to be more common in the mainland population from which the island was settled.

How could a geneticist best explain the dominance of blood type B in the island population?


Multiple choices;

A. Random mutations have occurred in the island population.

B. Genetic drift has reduced the frequency of type A individuals.

C. Natural selection has only occurred in the mainland population.

D. Environmental conditions on the island are less favorable for type B individuals.


Answer;

B. Genetic drift has reduced the frequency of type A individuals.


Explanation;

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-It occurs in all populations of non-infinite size, but its effects are strongest in small populations.

8 0
3 years ago
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The skin is made of cells and dead keratin and serves as much as possible to prevent most substances from moving through it. It’s “designed” for toughness and distensibility, not for selective permeability.

All in all, the difference is that a cell membrane is explicitly and only for the passing and transport of materials through it, and the skin in the skin is made to be tough and durable, almost the opposite of a cell membrane.

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<span>Cellulose is your answer </span>
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