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Mammals
Question | Answer |
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An endothermic vertebrate with a four-chambered heart, skin covered with fur or hair, and young fed with milk from the mother's body. | Mammal |
An organ in female mammals that produces milk for the mammal's young. | Mammary Gland |
A large muscle located at the bottom of a mammal's rib cage that functions in breathing. | Diaphragm |
A mammal that lays eggs. | Monotreme |
A mammal whose young are born alive at an early stage of development, and which usually continue to develop in a pouch on their mother's body. | Marsupial |
The length of time between fertilization and birth of a mammal. | Gestation Period |
A mammal that develops inside its mother's body until its body systems can function independently. | Placental Mammal |
A membrane that becomes the link between the developing embryo or fetus and the mother. | Placenta |