1
Q
Porifera
A
Sponges
2
Q
Cnidarians
A
Hydra and jellyfish
3
Q
Platyhelminthes
A
Flatworms, tapeworms
4
Q
Nematodes
A
Roundworms
5
Q
Annelids
A
Segmented worms like earthworms, leeches
6
Q
Mollusks
A
Squids, octopuses, slugs, clams, and snails
7
Q
Arthropods
A
Insects (grasshopper), crustaceans (shrimp, crab), arachnids (spider)
8
Q
Echinoderms
A
Sea stars (starfish) and sea urchins
9
Q
Chordates
A
Fish, amphibians, reptiles, birds, mammals
