Classes of Invertebrate Phyla

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Can you name the Classes of Invertebrate Phyla?

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Annelida - Hermaphroditic. Clitellum for sperm transfer
Chordates - sea squirts
Echinodermata - Sea Cucumbers
Ctenophora - No tentacles
Cnidaria - Stalked Jellies
Brachiopoda (hinged shell)
Echinodermata - Urchins
Cnidaria - Anenomes
Brachiopoda (non-hinged shell)
Cndaria - True Jellies
Annelida - parapodia for movment/gas exchange. Lethal Spawning events
Mollusca - 3-6 pairs of ctenidia, 6-7 pairs of nephridia
Echinodermata - Sea lillies
Chordates - Amphioxus
Hemichordates - peanut worms
Mollusca - vermiform shape
Mollusca - 7 to 8 plates in mantle
Arthropoda - Chelicerata (sea spiders)
Annelida -formerly own Phyla. U-shaped gut
Platyhelminthes - Ectoparasites
Mollusca - snails. have operculum
Arthropoda - Chelicerata (horse shoe Crabs)
Annelida - degenerate. Loss of segmentation
Rotifera - One Ovary
Platyhelminthes - free living
Rotifera - Asexual
Mollusca - tusk shaped shells. Lack Ctenidia and Osphradia
Cnidaria - Hydroids
Nemertea - Probosis with Stylet
Arthropoda - Mandibulata (Insects)
Porifera - Freshwater and Marine
Rotifera - Marine symbionts
Mollusca - squid
Arthropoda - Chelicerata (spiders)
Ctenophora - 2 tentacles
Nemertea - No stylet on Probosis
Platyhelminthes - Complex Life cycle/multiple hosts
Mollusca - lack radula. Clams
Arthropoda - extinct
Porifera - 6-rayed Spicules
Echinodermata - Basket stars
Cnidaria - Box Jellies
Platyhelminthes - tapeworms
Porifera - CaCo3 spicules
Hemichordates - colonial
Echinodermata - Sea Stars
Arthropoda - Mandibulata (crabs/lobsters)

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Created Dec 8, 2010ReportNominate
Tags:class, invertebrate, phyla