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12 Cards in this Set
- Front
- Back
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strong, lightweight, gives color and streamlined shape
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countour feathers
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vertebrate with 2 legs, 2 wings, bill and beak
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birds
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endotherms, have hair, produce milk
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mammals
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soft, fluffy, provide an insulating layer
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down feathers
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mammals that lay eggs
tough, leathery skin |
monotremes
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mammals that give birth to immature offspring, carry in pouch
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marsupials
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mammals whose embroys develop inside the uterus of a female
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placental
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mammals that eat only animals
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carnivores
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mammals that eat only plants
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herbivores
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mammals that eat both animals and plants
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omnivores
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a rod of stiffened tissue
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notochord
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change of body form
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metamarposis
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