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Invertrebrates (Porifera and cnidarians (cnidarians (Pollyps (sac like…
Invertrebrates
Porifera and cnidarians
porifera
sponge can have calcerous spicules
cnidarians
Pollyps
sac like body
jellyfish
umbrella-shaped
very simple aquatic organims
feed by filtration
insects
myriapods
crustaceans
arachnids
molluscs
Soft and not divided into rings
Have a muscular foot that carries out many functions
Majority are marine
3 types
cephalopods
carnivore
have a serie of tentacles
gastropods
herbivore and have a shell
they use the muscular foot to move around
Bivalves
Black shell made up of two halves, called valves
water leaving food particles
Body plan symmetry
Radial
asymmetry
bilateral
annelids
hermaphodites
soft and long
body is divied into rings
echinoderms
Endoskeleton
Radial symetry
arthropods
without backbone