Question

the relative ability of an organism to survive and reproduce in a particular environment is known as:
evolution.
fitness.
adaptation.
natural selection.
interplay.

Explanation:

Fitness refers to an organism's relative ability to survive and reproduce in its environment. Evolution is the change in traits over generations, adaptation is a trait aiding survival, natural selection is the mechanism driving evolution, and interplay is a general interaction—none match the definition as directly as fitness.

Answer:

B. fitness.