Which of the following statements about natural selection is true?
A) It is the principal cause of extinctions.
B) It is the principal cause of evolutionary change.
C) It occurs only in gametes.
D) It cannot occur without genetic drift.

Question

Quizplus · Accepted Answer

Natural selection is the principal cause of evolutionary change, as it acts on the traits that influence an organism's survival and reproductive success. It can lead to the adaptation of species to their environment over time. Option A is incorrect because althoughnatural selection can contribute to extinction in certain situations, it is not the principal cause. Option C is false because natural selection can occur in any type of cell that contains genetic material, not just gametes. Option D is also incorrect since genetic drift is a different mechanism of evolutionary change that can occur independently of natural selection.

Which of the Following Statements About Natural Selection Is True