It means that only those who are able to adapt with all conditions they are placed in will be able to live.
The answer is actually
<em>increased variation in tail feather color because the selection pressure has been relieved</em>
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<em>Good luck!</em>
<em>-RxL</em>
Give us Choices, but I’m guessing it’s limiting factor
Answer:
a. Extension of the lower leg
Explanation: is correct
