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slega [8]
3 years ago
8

Evolution can occur at different rates, however, for evolution to occur, there must be?

Biology
1 answer:
Roman55 [17]3 years ago
4 0
Only the successful competitors will reproduce, mortality is very high. Four (4) conditions for natural selection. Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
A third basic principle of evolution is competition. Replicating molecules compete with one another for available resources such as chemical precursors, and the competition allows the process of evolution by natural selection to occur. Variation will produce differing populations of molecules.
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Natasha_Volkova [10]

The value of the unknown number is 10.5.

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When 20 is subtracted from the number and the result is squared which is equal to the square of the unknown number minus 20:

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x = \frac{420}{40}\\\\ x = 10.5

Thus, the value of the unknown number is 10.5.

Learn more about word problem here: brainly.com/question/18336356

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