Broccoli, kohlrabi, Brussels sprouts, Chinese cabbage, and cauliflower were all derived from the single wild species. This diversity is a result of
A) adaptation.
B) natural selection.
C) biogeography.
D) artificial selection.
E) speciation. Artificial selection is the process of humans selecting those individuals possessing traits that they wish to see more prominent in the next generation, and allowing only those to reproduce. The result is the selective breeding for various traits leading to an assortment of types produced from a single common ancestor.

Question

Quizplus · Accepted Answer

The diversity of broccoli, kohlrabi, Brussels sprouts, Chinese cabbage, and cauliflower is a result of artificial selection. Humans have selectively bred the wild species for desirable traits, resulting in the various types that are now available. Natural selection, adaptation, biogeography, and speciation may have played a role in the evolution and distribution of the wild ancestor, but they are not responsible for the diversity seen in these domesticated plants.

Broccoli, Kohlrabi, Brussels Sprouts, Chinese Cabbage, and Cauliflower Were All