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Fish, Amphibians,

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