vertebrate that are fish like and breathe through gills, live in water when immature. Use lungs and live on land when mature. Skin is moist, have no scales or claws
metamorphosis
changes amphibian's body undergoes as it matures
frog
smooth moist skin
toad
dry bumpy skin
salamander/ newts
amphibians that keep tails all their life
tadpole
immature frog
polliwog
immature frog
hybernation
deep sleep amphibians go in in winter months
cartilage
soft flexible material used to connect bone to bone, some fish are made of this