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.

Answer 1

usually true.

Explanation: Genetic variation provides the raw material for natural selection and increases the likelihood that some individuals can survive environmental changes or new selective pressures. It is not always true because in stable environments low-variation populations can do well, and variation can include harmful alleles or be overwhelmed by other factors (small population size, catastrophic events).