Which characteristic of monotremes is ancestral to amniotes?
A)produce milk
B)have hair
C)lay eggs
D)differentiated teeth
E)are bilaterally symmetrical

Question

Quizplus · Accepted Answer

Laying eggs is characteristic of all amniotes, including reptiles, birds, and mammals. Monotremes, which are a group of mammals, also share this trait. Therefore, the ability to lay eggs is ancestral to amniotes, including monotremes.

Which Characteristic of Monotremes Is Ancestral to Amniotes