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 most cases, genetic variation provides a population with a wider range of traits. This means that when the environment changes (e.g., new predators, diseases, or climate shifts), there is a higher probability that some individuals in a variable population will possess traits that allow them to survive and reproduce. For example, in a population of bacteria, if there is variation in antibiotic - resistance genes, when exposed to an antibiotic, some bacteria may survive. However, there could be rare scenarios where a very stable environment might favor a less - variable population (though this is uncommon). So, the statement is usually true.

Answer:

B. usually true.