protostomes

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Author:
patterson911
ID:
48594
Filename:
protostomes
Updated:
2010-11-09 21:46:18
Tags:
bio chapter
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Description:
protostomes
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  1. Trematoda (flukes)?
  2. · Parasites of mollusks and vertebrates
    • · Inhabit digestive tract and/ or liver
    • · Complex life cycles with intermediate hosts
    • · Monoecious (most); some dioecious
  3. Trematoda (flukes) examples are?
    Fasciola hepatica (liver fluke), schistosoma mansoni (blood fluke)
  4. Turbellaria (turbellarians)?
  5. · Free-living carnivores
    • · Marine (most) or freshwater
    • · Move via cilia or undulation
    • · Have ocelli (eyespots)
    • · Monoecious (One individual can produce both egg and sperm)
  6. Three classes of flatworms:
    Turbellaria (turbellarians), Trematoda (flukes), Cestoda (tapeworms)
  7. Phylum Platyhelminthes (flatworms)?
    • · Acoelomate
    • · Unsegmented
    • · Dorsoventrally flattened body
    • · Gastrovascular cavity or no digestive tract
    • · Some free-living; most parasitic
  8. Phylum Ectoprota (bryozoans)?
  9. · Coelomate
    • · Have lophophore
    • · Marine (most)
    • · Colonial
    • · Reproduce sexually and asexually
  10. Lophotrochozoans?
    Phylum: Ectoprota (bryozoans), Platyhelminthes (flatworms), Rotifera (rotifers), Nemertea (ribbon worms), Phoronida (phoronids), Brahciopoda (brachiopods), Annelida (segmented worms), Mollusks
  11. Ecdoysozoans?
    have an exoskeleton (chitin) or a cuticle; must undergo ecdysis to grow
  12. Lophotrochozoans?
    possess a lophophore or have a tropchophore larval stage
  13. What are two major protostomes clades?
    • -Lophotrochozoans
    • -Ecdoysozoans

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