Chapter 23 part 3

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Author:
rfgyger
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147861
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Chapter 23 part 3
Updated:
2012-04-15 23:11:07
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Phylums
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Phylums
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  1. 3 classes of Annelids?
    • Oligochaetes: earthworms
    • polychaetes: live in ocean with featherly gills
    • Leeches: freshwater, moist enviroments
  2. Annelids are B or R
    Bilateral
  3. 3 Classes of Molluska?
    • Gastropods: snails
    • Bivalves: Scallops, oysters, mussels, Clams..
    • Cephalopods: Octopuses, Squids, cuttlefish,
  4. Molluska B or R
    Bilateral
  5. 4 groups of Arthropods?
    • Butterflys and Moths
    • Bees and wasps
    • Beetles
    • Arachnids
  6. Arthropods B or R
    Bilateral
  7. Arthropods: Exoskeleton?
    cannot expand so must shed or molted
  8. Arthropods: Metamorphosis?
    • Complete: egg-larva-pupa-adult
    • Incomplete: egg-nymph-adult (grasshoppers and Crickets)
  9. Arthropods: Organs?
    Yes have organs
  10. Porifera?
    Sponges
  11. Porifera: B or R
    None
  12. Proifera: Cell Types of a sponge
    • Because no real organs or tissues individual cells:
    • Epithelial cells: cover outter body
    • Pore cells: surround pores, regulating water
    • Amoeboid Cells: food is passed through cells
    • Collar Cells: Maintatin water flow throught sponge by beating flagella that extend into the inner cavity
  13. Proifera: Types of Sponges
    • Encrusting Sponge
    • Tubular sponge
    • Flaried sponge
  14. Cnidarians: 3 Types
    • scypozoans: jelly fish
    • Anthozoans: sea anemones, corals
    • Hydrozoans: Hydra
  15. Cnidarians: Nerve Nets?
    some have nerve nets: branches through the body and controls the contractile tisse to bring about movement and feeding behavior
  16. Cnidrains: Tissues or organs? B or R
    No organs,and are Radial
  17. Cnidaridans: Body Types
    • Polyp: Tubular, attached to rocks, tenticals upward
    • Medusa: floats in water, carried by currents, tenticals downward
  18. Cnidarians: Preditors
    tenticals armed with cnidocytes
  19. Cnidarians: Germ layer
    two germ layers, between them are jelly like substance
  20. Platyhelminthes?
    Flat worms
  21. Platyhelminthes: B or R, Reproductions?
    Bilateral, hermaphroditic so can reproduce asexually and sexually
  22. Nematoda?
    Round worms
  23. Nematoda: B or R; Body; Organs or Tissues?
    Bilateral, Organ systems, Tubular gut, fluid filled pseudocoelm surrounding organs
  24. Nematoda: Harmful?
    • Hookworms
    • Trichinella
    • Heartworms
  25. Echinodermata?
    Sand Dollars, Sea orchins, Starfish
  26. Echinodermata: B or R
    Bilateral as larve and Radial as adults have endoskeleton (internal skeleton)
  27. Platyhelminthes: 3 classes
    • Turbellarians
    • Flukes
    • Tapeworms
  28. Platyhelminthes: Ganglia
    nerve cells with nerve cords to ganglia signals body, lacks respritory and circulatory systems
  29. Platyhelminthes: Tapeworms: Scolex
    Hook like thing that attaches to the intestense of the animal or person
  30. Platyhelminthes: Proglottids
    Segment of tapeworm containing male and female reproductive organisms.. come out of human stool

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