Which of the following is a trait shared by mammals and reptiles that is not shared by the other groups of chordates?
A) hair
B) mammary glands
C) an amnion
D) legs
E) lungs

Name: Which of the following is a trait shared by mammals and reptiles that is not shared by the other groups of chordates? A) hair B) mammary glands C) an amnion D) legs E) lungs
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Question

Quizplus · Accepted Answer

The amnion is a critical membrane in the amniote egg, which was key for the tetrapod conquest of land.

Which of the Following Is a Trait Shared by Mammals