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shell T body plan
filter feeders Feeding
sharp jaws to eat prey--- octopi
exoskeleton- made of chitin
well developed nervous system
have a brain
central switch board
contractions certain stretch or extend
No cell walls
Few specialized cells
rely on movement out of water
no nervous system
all breath oxygen
Bilateral symmetry = mirror image sideways
Radial symmetry- circular
asymmetrical- no symmetry
live in one place
eats smaller organisms that enter them through pores
male and female
true coelum lined with tissue derived from mesoderm
aquatic annelids breathe through gills
two major groups of muscles
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