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Invertebrates - Coggle Diagram
Invertebrates
Echinoderms
sea urchins
sea star
salt water have body parts in multiples of five
Arthropods
crustaceans
exterior shell, five pairs of jointed limbs
spiders
two body segments, eight legs
insects
antennae jaws three body segments
simplest invertebrates
corals
sponges
jellyfish
more complex invertebrates
Mollusk
have shells for protection
squid
have internal shell
octopi
do not have shell at all