| A | B |
|---|
| Omnivores | mammals that eat both plants & animals are ____. |
| Gestation | an embryo develops inside an elephant's uterus is called the___period. |
| Down | ____feathers are soft & fluffy. |
| Marsupials | Opposums are the only ____ that live in N.America. |
| Monotreme | mammal that lay eggs with tough,leathery shells is a ____. |
| Mammary | ____glands are found in all mammals. |
| Herbivores | mammals that eat only plants are ____. |
| Preening | a bird rubbing oil from its oil glands over its feathers is the process of _____. |
