Verified Answer :

Chuck187

Four general conditions necessary for natural selection to occur are: A. More organisms are born than can survive. B. Organisms vary in their characteristics, even within a species. D. Differences in reproduction and survival are due to variation among organisms.

blakeedwards2019

Answer:

1. heritable variations for some traits

Explanation:

Assuming the options are:

  1. heritable variations for some traits
  2. the ability of an organism to improve a trait during its lifetime
  3. equal probability of survival for all offspring
  4. fewer offspring than the environment can support

there are 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. If they are met, natural selection automatically results.

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