Answer:
Sponges (Porifera)
Comb jellies (Ctenophora)
Hydras, jellyfishes, sea anemones, and corals (Cnidaria)
Starfishes, sea urchins, sea cucumbers (Echinodermata)
Flatworms (Platyhelminthes)
Earthworms and leeches (Annelida)
Insects, arachnids, crustaceans, and myriapods (Arthropoda)
They have no backbones
I'm not sure pero i hope
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Answers & Comments
Answer:
Sponges (Porifera)
Comb jellies (Ctenophora)
Hydras, jellyfishes, sea anemones, and corals (Cnidaria)
Starfishes, sea urchins, sea cucumbers (Echinodermata)
Flatworms (Platyhelminthes)
Earthworms and leeches (Annelida)
Insects, arachnids, crustaceans, and myriapods (Arthropoda)
Answer:
They have no backbones
I'm not sure pero i hope