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ra1l [238]
3 years ago
14

Which is not essential for evolution to happen?

Biology
1 answer:
erik [133]3 years ago
7 0

Answer:

a population.

Explanation:

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san4es73 [151]
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For question 12 the answer is :
B, since the fluid moves from an area of high concentration to lower concentration to calibrate it!

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