Which of the following is the best description of Darwin's theories?

Question

Quizplus · Accepted Answer

Darwin's theories emphasized natural selection, the process by which organisms that are best adapted to their environment are more likely to survive and reproduce. This concept is often summarized as "adapt or perish." Darwin did not subscribe to the idea of a biological hierarchy or the notion that one race was superior to another. While his theories did involve the concept of evolution over millions of years, that is not the best overall description of his work.

Which of the Following Is the Best Description of Darwin's