Mammals

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Mammals are adapted to live in the following environments:

Mammals that give birth to fully developed live young are termed

The circulatory system of mammals has a ___________________ chambered heart.

Unlike reptiles young mammals depend on their parents for

In mammals the powerful muscle that aids in breathing is the

Compared to amphibians and reptiles, mammals are

Which structure in female mammals produces milk to nourish young?

Mammals are characterized by