In the evolutionary lineages leading to dinosaurs and birds, and to mammals, two important factors enabled these organisms to run quickly for long periods of time: a more vertical position assumed by the legs, and special _______ muscles that could operate independently of locomotory muscles.

Question

Quizplus · Accepted Answer

The Answer of In the evolutionary lineages leading to dinosaurs and birds, and to mammals, two important factors enabled these organisms to run quickly for long periods of time: a more vertical position assumed by the legs, and special _______ muscles that could operate independently of locomotory muscles.

In the Evolutionary Lineages Leading to Dinosaurs and Birds, and to Mammals