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Wormlike creatures that are segmented
Ex. Earthworms, leeches
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Annelida (true worms)
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Invertebrates (having no spine), with segmented bodies and jointed legs in pairs.
Ex. Insects, spiders
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Arthropoda
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Vertebrates (having a spine).
Ex. Humans, birds, fish, reptiles
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Chordata
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Symmetrical marine vertebrates that have a water vascular system.
Ex. Starfish, sea urchins, sea cucumbers
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Echinodermata
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Invertebrate marine animals that have ies, usually with shells.
Ex. Octopuses, clams, snails
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Mollusca
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Unsegmented, cylindrical bodies.
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Nematoda (roundworms)
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Invertebrates; simple tissues with a mouth surrounded by tentacles; have stinging cells.
Ex. Jellyfish, corals
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Cnidaria
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Simplest of all animals; have no tissue or organs.
Ex. Sponges
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Porifera
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