Lab 22

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Author:
cep9654
ID:
271660
Filename:
Lab 22
Updated:
2014-04-24 12:12:24
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Invertebrates
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Final
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  1. What is a bauplan?
    body plan
  2. The four characteristics that are important when classifying animals:
    • The presence or absence of tissue types
    • Body symmetry
    • Presence or absence of true body cavity
    • Embryonic development
  3. Animals without tissue vs Animals with true tissue
    • prometazoa
    • eumetazoa
  4. multicellular animals that do not have tissue and belong to the parazoa
    • Porifera
    • Sponges
  5. The formation of all three tissue types makes an organism __ rather than __.
    • triploblastic
    • diploblastic
  6. The animals in the Phyla __ are diploblastic
    Cnidaria
  7. animals that have a true body cavity that consist of mesoderm enclosed cavities within an ectoderm/endoderm cavity
    coelomates
  8. __ form from developing mesoderm, while __ develop from out pocketing of the gut
    • schizocoeloms
    • enterocoeloms
  9. flatworms
    Platyhelminthes
  10. a concentration of nerve and sensory tissue near the anterior end
    cephalization
  11. a digestive tract that consists of an open sac
    gastrovascular cavity
  12. If you have a gastrovascular cavity, this means:
    there is a common opening for both food and waste materials to pass through
  13. free-living flatworms
    turbellaria
  14. they have extraordinary regenerative powers
    turbellaria
  15. flukes, parasitic flatworms lacking a ciliated epidermis
    trematoda
  16. tapeworms
    cestoda
  17. the anterior end of the animal and is used ti attach to the intestine wall of the host
    scolex
  18. round worms
    Nematoda
  19. make and female individuals means a species is __
    dioecious
  20. when an animal has both male and female organs
    monoecious
  21. segmented worms
    annelida
  22. when an animal has true segments arranged linearly along the anterior-posterior axis
    metamerism
  23. many setae (hairs)
    Polychaeta
  24. free swimming larva stage
    trochophore
  25. earthworm
    lumbricus

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