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7. Mammals - Coggle Diagram
7. Mammals
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Body characteristics:
Many glands
Sebaceous glands: base of each hair, produce a type of oil.
Mammary glands: Only functional in the female, produce milk to feed the young.
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Lips and teeth
Teeth used to tear, cut and grind food.
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Homeothermic, mammals maintain a constant body temperature.
Types of mammals
Marsupials 
Viviparous reproduction without placentas. The young developed in an external pouch where the mammary glands are located.
South America, Australia.
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Monotremes
Lay eggs. At birth, the young feed on milk produced by the mother.
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Placentals
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Most mammals, like rabbits and humans.