| A | B |
|---|
| Hair | developed by mammals |
| Skin | an important insulater for mammals |
| Bats | are flying mammals |
| cerebrum | part of brain with highest brain function |
| monotremes | mammals that lay eggs |
| marsupials | mammals with pouches |
| placental mammals | mammals with placentas |
| placenta | an organ that takes nutrients to an embryo and releases wastes as well |
| carnivora | meat eating mammals |
| cetecea | ocean living mammals |
| insectivora | insect eating mammals |
| rodentia | mammals with chisel-like front teeth |
| proboscidea | mammals with trunks and tusks |
| primates | mammals have thumbs and eyes facing forward |
| chiroptera | flying mammals |
| perissodactyla | mammals with hooves with an odd number of toes |
| artiodactyla | mammals with hooves with an even number of toes |
| lagomorpha | mammals with long hind limbs for jumping |
