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15 Cards in this Set
- Front
- Back
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Parazoa
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no true tissues
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Animals with Radial Symmetry
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Ectoderm+Endoderm
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Animals with Radial Symmetry containing two layers are
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Diploblastic
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Animals with Bilateral Symmetry
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Ectoderm+MESODERM+Endoderm
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Animals with Bilateral Symmetry containing three layers are
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Triploblastic
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Coelomates
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a body cavity lined with mesodermal cells
examples: Mollusca, Annelida, Arthropoda, Echinodermata |
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Pseudocoelmates
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a body cavity not lined with mesodermal cells
example: Nemotoda |
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Acelomates
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no true body cavity
examples: Porifera, Cnidaria, Platyhelminthes |
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Caenorhabditis elegans
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soil nematode
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amebocytes
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transport nutrients and help produce skeletal fibers, either calcareous or siliceous
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Spicules
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skeletal fibers
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Taenia pisformis
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infects organisms afflicted with fleas, including dogs, carts and their owners (kids)
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Dipylidium caninum
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cucumber tapeworm
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Schistosoma mansoni
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human blood fluke, secondary host is snail
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Trichinella spiralis
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