Following the reptilian extinctions at the close of the Mesozoic era, two groups of mammals, the marsupials and ______ , evolved and expanded.
A) angiosperms
B) placentals
C) bipedals
D) endotherms

Question

Quizplus · Accepted Answer

The marsupials and placental mammals are the two main groups of mammals that evolved and diversified after the extinction of the dinosaurs. Angiosperms are flowering plants, bipedals are creatures that walk on two legs, and endotherms are animals that can regulate their body temperature internally, but these characteristics are not directly related to the evolution of mammals after the Mesozoic era.

Following the Reptilian Extinctions at the Close of the Mesozoic