| A | B |
|---|
| an endothermic vertebrate with hair | Mammel |
| Secrete milk that nourishes the young | Mammary Glands |
| A dome-shaped sheet of muscle that seperates the chest cavity and the abdomen | Diaphram |
| A mammal that reproduces by laying eggs | Monotreme |
| Mammals that give birth to small, immature young that further develop inside the mothers external pouch | Marsupials |
| Mammals whose young develop inside the mother's body and are nourished by the mothers body until birth are | Placental Mammals |
| The time that the embryo stays inside the mother's body | Gestation Period |
| The largest order of mammals | Rodents |
| The second largest order of mammals | Chiroptera |
| Humans and apes fall under the order of | Primates |
