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15 Cards in this Set

  • Front
  • Back
A body cavity that forms between germ layers
coelom
acoelomate
no body cavity between germ layers
body symmetry is found in all invertebrates except
sponges
invertebrates that exhibit radial symmetry are
cnnidarians and echinoderms
cephalization
concentration of sense organs and nerve cells in the front of the body
if an animal has no coelom and no cephalization it is either a
sponge or cnidarian
order in which major invertebrate features evolved
multicellularity-->tissues-->3 germ layers-->coelom
eyespots of flatworms
detect the presence of light
endoskeleton
support structure located inside the body
the notochord is a characteristic of
all chordates
largest living group of chordates
fish
unlike plant cells, animal cells do not have
cell walls
if a cell contains a nucleus and membrane bound organelles, it must be
eukaryotic
animals are not
autotrophic
an animal that has distinct left and right sides shows
bilateral symmetry