Together, variation (at both the genotypic and phenotypic levels) and competition
A) produce evolutionary change.
B) minimize the role that natural selection has played in human evolution.
C) play only a minor role in natural selection, regardless of species.
D) act directly on an organism's genotype.
E) confer reproductive success to those species that are stronger.

Question

Quizplus · Accepted Answer

Variation at both the genotypic and phenotypic levels provides the raw material for natural selection, while competition among organisms for resources drives the process of natural selection, leading to evolutionary change.

Together, Variation (At Both the Genotypic and Phenotypic Levels) and Competition