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Fish, Amphibians,

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
NOTOCHORD   a flexible cord that supports a chordates back  
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characteristics of a CHORDATES?   all chordates have a nerve cord in back, slits in throat area, and a notochord  
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major characteristic of VERTEBRATES   all have a backbone that is part of an endoskeleton  
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vertebrae/vertabra   small similiar bones that form the back bone of vertebrates  
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ECTOTHERMS   animal that does not produce internal heat;body temperature depends on its environment  
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ENDOTHERMS   animals that can produce and regulate its body temperature  
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Endothermic examples   mammals and birds- horses, bears, beavers, walrus, eagles, egrets, owls  
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Ectothermic examples   reptiles and amphibians- snakes, lizards, frogs, salamanders, turtles  
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characteristics of a fish   lives underwater,uses fins to move, has scales, gets oxygen through use of gills  
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reprdoduction of fish   external fertilization  
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Created by: EGHS
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