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sedghoward - Birds and Mammals Sixth Grade Gail Howard...

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Birds and Mammals Sixth Grade Gail Howard Birds The Physics of Bird Flight What Is a Mammal? Diversity of Mammals
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Characteristics of Birds Endothermic vertebrate Feathers Four-chambered heart Lays eggs
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Four ways birds are adapted for flight Bones of a bird’s forelimbs form wings Bones are nearly hollow Large chest muscles that move the wings Feathers
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Characteristics of Mammals Endothermic vertebrate Four-chambered heart Skin covered with fur or hair Most young are born alive Fed with milk produced in its mother’s body
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Three groups of mammals Monotremes Marsupials Placental mammals
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Monotremes There are two species of monotremes: spiny anteaters and duck- billed platypus. They are mammals that lay eggs.
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Marsupials Marsupials are mammals whose young are born alive, but at an early stage of development, and they usually continue to develop in a pouch on their mother’s body.
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