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Animal Phyla

TermDefinition
Phylum Porifera (Sponges) Cellular level of organization Usuallly sensile(non moving) Feeders Spicules- elongated, rigid structures for body support choanocytes-line inner cavity of sponges Sexual/asexual
Phylum Cnideria (Hydria/Jellyfish) Radial symmetry or biradial Tissue level of organization Gastrovascular cavity - digestsion/circulation Nerve net - Allows for sensation Cnidocytes - Cells that contain whip like structures
Phylum Platyhelminthes (flukes/Tapeworms) Acelomate - no coelom Sac body plan - only one opening Bilateral symmetry
Phylum Annelidia (earthworms/marine worms/leaches) Homonomous Segmentation unjointed seatae bilateral symmetry hydroskeleton (pressured water body support)
Phylum Mollusca (snails/slugs/clams/oysters/octopuses/squid) Soft Body Hard, Calcium carbonate shell possesssed by many Bilateral symmetry
Phylum Nematoda (roundworms) - no segments Bilateral Symmetry Psuedocoelomate - body cavity not completely lined on inside Most have complete digestive tract
Phylum Arthropoda (insects/spiders/crustaceans/centipedes/milipedes) Jointed appendages Segmented body Bilateral symmetry
Created by: eriksherf
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