3)
If a population lacks variation (fixed), no individual has any advantageous trait, and the environment changes for the worse. What will most likely happen to the population in terms of natural selection?
The entire population will still survive and adapt to the new environment.
A portion of the population will still survive and adapt to the new environment.
The entire population will go extinct.
Artificial selection will occur since natural selection cannot.
Some individuals in the population will automatically mutate in response to the environmental change so that variation will exist.
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