With a few exceptions, mammals are

Name: With a few exceptions, mammals are
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Question

Quizplus · Accepted Answer

The majority of mammals are viviparous, meaning they give birth to well-developed offspring that receive nourishment through the placenta during gestation.

Exceptions to this include monotremes (such as the platypus and echidnas), which lay eggs, and a few species of marsupials (such as opossums) that are oviparous or have delayed implantation before giving live birth.

With a Few Exceptions, Mammals Are