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13 Cards in this Set
- Front
- Back
Phylum Porifera
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"pore bearers"
all the sponges sessile (stay in one place) specules (internal framework of sponge) filter feeders cellular-no germ layers-no symmetry-no body plan-acoelomate-nonsegmented |
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Phylum Cnidaria
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"cnidarians"
Hydra, jellyfish,portguese-man-of-war, sea anemones, coral cniocytes(stinging cells), tentacles, hydra have nerve tissues tissues-diploblastic-radial-sac plan-acoelomate-nonsegmented |
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Phylum Platyhelminthes
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"flatworm"
Planaria, parasitic tapeworms, parasitic flukes organ/organ system-triploblastic-bilateral-sac plan-acoelomate-non segmented |
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Phylum Nematoda
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"roundworms"
human roundworm, hookworm, pork roundworm, heartworm only phylum with pseudocoelomate organ/organ system-triploblastic- bilateral-tube within a tube- pseudocoelomate-nonsegmented |
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Phylum Mollusca
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"mollusks"
SECOND LARGEST PHYLUM clam, oyster, scallops, snails, slugs, squid, octopus all have 'foot,' mantle, visceral mass organ/organ system-triploblastic-bilateral-tube within a tube-(coelomate)true-nonsegmanted |
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Phylum Annelida
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"segmented worms"
sandworms, leeches, earthworms organ/organ system-triploblastic- bilateral-tube within a tube-coelomate-segmented |
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Phylum Arthropoda
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"jointed feet"
LARGEST PHYLUM crayfish, crabs, lobsters, shrimp, barnacles, spiders, ticks, scorpions, millipedes, centipedes, all insects all have exoskeleton segmentation is fused into geographic regions organ system-triploblastic-bilateral-tube within a tube-coelomate-segmented |
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Phylum Echinodermata
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"echinoderms"
starfish(seastar), brittlestar, sandollar, sea urchins, sea cucumber unique watervascular system organ system-triploblastic-bilateral-tube within a tube-coelomate-nonsegmented |
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Germ layers
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embryonic cell layers, form in embryo
none two (diploblastic) :ectoderm (outside) and endoderm (inside) three (triploblastic): ectoderm, endoderm, and mesoderm (middle) |
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Symmetry
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none (asymmetric)
radial (round): halves bilateral |
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Body plan
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how the digestive tract is set up
none sac plan (only one opening): mouth used for food intake and exit of waste tube within a tube (two openings): separate openings (mouth and anus) for food intake and waste exit |
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Coelom
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body cavity with organs
acoelomate: no coelom pseudocoelate: false coelom, made of endoderm and mesoderm coelomate: true coelom |
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Segmentation
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nonsegmented: no segmentation (repeating parts)
segmented: |