Animal life underwent its greatest diversification during the ______,which began about ______ million years ago.

Question

Quizplus · Accepted Answer

The Cambrian period, which began about 540 million years ago, is known as the "Cambrian explosion" because it is when animal life underwent a rapid and diverse diversification. The other options, Permian (290 million years ago), Carboniferous (363 million years ago), and Mesozoic (245 million years ago) were also significant periods for animal life, but they did not see the same level of diversification as the Cambrian.

Animal Life Underwent Its Greatest Diversification During the ______,Which Began