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High School Biology: Mammals and Animal Behavior - Reproduction in Mammals (Fill in the blank)
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High School Biology: Mammals and Animal Behavior - Reproduction in Mammals (Fill in the blank)
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8 Questions

1. Mammals that are ____________ are called therian mammals.

2. Like other female vertebrates, all female mammals have ____________.

3. A marsupial embryo completes its development outside the mother’s body in a ____________ on her belly.

4. Female monotremes have a ____________ with one opening.

5. The only living monotreme species are the ____________ and echidnas.

6. Placental mammals are therian mammals in which a ____________ develops during pregnancy.

7. ____________ are mammals that reproduce by laying eggs.

8. Marsupials live mainly in ____________.

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