Key Terms in Animal Diversification

adult,

amniote,

amphibian,

animal,

annelid,

arthropod,

bilateral symmetry,

bivalve mollusk,

cartilaginous fishes,

cephalopod,

complete metamorphosis,

coral reef,

deuterostome,

dorsal hollow nerve cord,

ectotherm,

endotherm,

exoskeleton,

flatworm,

gastropod,

hair,

incomplete metamorphosis,

invertebrates,

larva,

lobe-finned fishes,

mammary glands,

marsupial,

metamorphosis,

monotreme,

non-amniote,

notochord,

pharyngeal slits,

placental,

post-anal tail,

protostome,

pupa,

radial symmetry,

ray-finned fishes,

roundworm,

segmented worm,

sessile,

tetrapod,

vertebrates,

viviparity,