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"sponges"
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basal animals
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no true tissue
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sedentary
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marine or freshwater
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suspension feeder
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Lophotrochozoa
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bilateral sym
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Ecdysozoa
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triploblastic
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Deuterostomia
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true coelom
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2 openings
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gastropods, bivalves, cephalopods
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marine
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coelomate
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open circ system
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soft bodied with hard shell
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intelligence in cephalopods
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Polychaetes
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bristle worms
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Oligochaetes
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earthworm leeches
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fused rings
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coelomates
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closed circ system
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sea stars/urchins/ cucumbers, sand $, brittle stars
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slow moving/sessile
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endoskeleton of ossicles
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external sex repro
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comb jellies
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basal eumetazoans
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-protostomy
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Platyhelminthes
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flatworms
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Syndermata
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rotifers
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Mollusca
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molluscs
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Annelida
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annelids
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flatworms
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bilateral sym
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acoelomate
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aquatic
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single opening
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parasitic: tapeworm
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segmented body plan
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cuticle
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open circ system
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specialized jointed appendages
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- walking, feeding, sensory, reprod, defense
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Chelicerate
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horseshoe crab, scorpians, ticks, mites, spiders
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Myriapod
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centipedes, millipedes
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Crustacean
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crab, lobster, shrimp, barnacles
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Hexapod
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insects and relatives
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Notochord
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dorsal hollow nerve cord
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pharyngeal slits
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post anal tail
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jellyfish, anemones, corals, hydras
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radial symmetry
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diploblastic
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sessile/motile
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sac w/ central digestive compartment
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single opening
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rotifers
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aquatic
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pseudocoelomate
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two opening
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parthenogenesis
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most species rich animal group
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protosomy
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ecdysis
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shedding of cuticle
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cuticle
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tough exoskeleton 4 support and protection
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roundworms
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parasitic
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live in body fluids
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reproduce sexually
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internal fertilization
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Echinoderms and chordates
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shared developmental characteristics (deuterostomy)
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radial indeterminate cleavage
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anus from blastopore
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
