If a Population Lacks Variation (Fixed),no Individual Has Any Advantageous

question 50

Multiple Choice

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?

• A) The entire population will still survive and adapt to the new environment.
• B) A portion of the population will still survive and adapt to the new environment.
• C) The entire population will go extinct.
• D) Artificial selection will occur since natural selection can not.
• E) Some individuals in the population will automatically mutate in response to the environmental change so that variation will exist.

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Definitions:

Nauseous Reaction

A nauseous reaction is a physiological response to various stimuli, resulting in the urge to vomit.

Unconditioned Response

An automatic, natural reaction to a stimulus that occurs without prior learning or conditioning.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with the unconditioned stimulus, evokes a conditioned response.

Classical Conditioning

An educational method where two stimuli are consistently associated together, leading to a reaction initially triggered by the second stimulus being provoked solely by the first stimulus over time.