Question

populations of organisms that exhibit a high degree of variation have a greater chance for survival than populations of organisms that show little variation. this statement is
○ always true.
○ usually true.
○ rarely true.
○ never true.

Explanation:

In the context of evolution and natural selection (a key concept in Biology, a subfield of Natural Science), genetic or phenotypic variation in a population provides more traits that might be advantageous in changing environments. Populations with high variation are more likely to have individuals with traits that help them survive and reproduce when conditions change, so the statement is usually true as there could be rare exceptions (e.g., in extremely stable environments where variation might not be as critical, but generally variation aids survival).

Answer:

usually true.