When a Population of Organisms is Evolving, What Can You

Question

When a population of organisms is evolving, what can you be sure is happening?
A) It's improving.
B) It's stable (no change).
C) It's getting bigger.
D) It's changing.

Accepted Answer

Evolution by definition involves change in a population of organisms over time, so we can be sure that some sort of change is happening. It doesn't necessarily mean that the population is improving, stable, or getting bigger.