A
animals with backbones are called this
vertebrates
body temp does not change
warm blooded
get heat from breaking down food
warm blooded
get heat from outside bodies
cold blooded
number of vertebrate classes
7
rubbery material
cartilage
this fish's mouth acts like a suction cup
jawless
sharks are this class of fish
jawless
largest class of vertebrates
bony fish
this animals skin needs to stay moist
amphibians
tuna are in this class
bony
spend part of their lives in water and part on land
amphibians
goldfish are in this class
bony
live on land and have dry skin
reptiles
warm blooded group with fur
mammals
these two mammals lay eggs
duck-billed platypus
spint anteater
what three animals carry their young in pouches
kangaroos
koalas
opossums
three mammals that develop inside mother's body
humans
sheep
bats
apes
snakes and lizards part of this group
reptiles
makes up skeletons in sharks and rays
cartilage
this is part of an animal's endoskeleton
backbone
hollow bones help birds do this
fly
mammals
lampreys are in this class
jawless fish
bony fish