Darwin observed that
A)members of a population vary in their functional,physical,and behavioral characteristics.
B)there is a constant struggle for survival of organisms.
C)organisms in a normal population differ in reproductive success.
D)All of the choices are correct.
E)None of the choices are correct.

Question

Quizplus · Accepted Answer

Darwin's observations included the variation among individuals in a population, the struggle for survival, and differences in reproductive success, all of which contribute to natural selection.

Darwin Observed That