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17 Cards in this Set

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  • Back
vertebrate
an animal with a backbone and skull
vertebrae
segments of bones
endotherm
an animal that maintains a constant body temp.
cartilage
is a substance that is in a shark that gives support and protection but isn't rigid like a bone
ectotherm
an animal whose body temp. flurtuactes with environments temp.
fins
fan like structures that help fish move
scales
bony structures that cover skins of bony fish
lateral line system
a row or rows of tiny sense organs along each side of the body
gills
organs that remove oxygen from the water and co2 from the blood
denticles
small, sharp, tooth like structures on the skin of cartilagious fishes
swim bladder
a balloonlike organ that is filled with oxygen and other gases; gives bony fish their buoyncy
lung
a saclike organ that takes oxygen from the air and delivers it to the blood
tadpole
the aquatic larvae of an amphibian
metamorphosis
the process in which another animal develops into another one
therapsid
a prehistoric reptile ancestor of mammals
amniotic egg
an egg containing amniotic fluid to protect the developing embryo
chartate
members of the pylum chorata