Platyhelminthes, Nematodes, Molluscs

Platyhelminthes, Nematodes, Molluscs - BSC 2011L Animal...

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Unformatted text preview: BSC 2011L Animal Characteristics  Symmetry Radiata radial symmetry, diploblastic (2 tissues) Bilateria bilateral symmetry, triploblastic S Body Cavity Acoelomates no cavity Psuedocoelomates false coelom, not completely lined by mesoderm derived tissue Coelomates true coelom, room for organs in body cavity lined with mesoderm tissue Protostomes 1 st embryonic opening becomes mouth Deuterostomes 1 st embryonic opening becomes anus Animal Taxonomy (cont.) Phylum Platyhelminthes  Flatworms Can be free living or parasitic Hermaphroditic Acoelomates One opening Digestion gastrovascular cavity Circulation gastrovascular cavity Phylum Platyhelminthes Phylum Platyhelminthes Class Turbullaria  Animal: Planaria S Symmetry: Bilateral S Body cavity: acoelomate S Digestion: gastrovascular cavity S Circulation: gastrovascular cavity S Segmentation: none S Appendages: none S Nervous: brain, 2 ventral nerve cords, ladder-like...
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Platyhelminthes, Nematodes, Molluscs - BSC 2011L Animal...

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