Bio Animal diversity I exam2

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yourmomhaslice
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204883
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Bio Animal diversity I exam2
Updated:
2013-03-04 12:04:54
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bio exam2
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will be covered on exam 2
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  1. Characteristics of Animals
    •Eukaryotic cells

    •Multicellular

    •Heterotrophs

    •Motile (at some stage of life)

    •No cell walls

    •“Moving, eating machines”
  2. BODY PLAN
    –tissue layers

    –symmetry and cephalization

    –coelom (fluid-filled body cavity)

    –embryonic development
  3. –tissue layers–symmetry and cephalization–coelom (fluid-filled body cavity)–embryonic development
    Defines body plan
  4. Tissue
    group of similar cells
  5. group of similar cells
    Tissue
  6. Diploblasts
    • organisms with 2 types of tissues
    • (Ectoderm and Endoderm)
  7. organisms with 2 types of tissues
    • Diploblast
    • (Has ectoderm and endoderm)
  8. ectoderm
    (outside)
  9. outside
    ectoderm
  10. endoderm
    inside
  11. inside
    endoderm
  12. Triploblasts
    • organisms with 3 types of tissues
    • (Mesoderm, ectoderm, endoderm)
  13. organisms with 3 types of tissues(Mesoderm, ectoderm, endoderm)
    Triploblasts
  14. mesoderm
    –(middle)
  15. •Asymmetry
  16. Radial symmetry
    • at least 2 planes of symmetry
  17. Bilateral symmetry
    • 1 plane of symmetry
    • (people
  18. 1 plane of symmetry
    Bilateral symmetry
  19. at least 2 planes of symmetry
    Radial
  20. Not symmetrical
    asymmetry.
  21. cephalization
    (bilateral) development of head
  22. Coelom
    •enclosed fluid-filled body cavity

    • –circulation
    • of oxygen and nutrients

    • –support
    • and movement
  23. •enclosed fluid-filled body cavity

    –circulation
    of oxygen and nutrients

    –support
    and movement
    coelum
  24. Acoelomate
    •no coelom
  25. No coelom
    Acoelomate
  26. Pseudocoelomate
    coelom partially lined with mesoderm (coelom imposter)!
  27. Coelom partially lined with mesoderm
    Pseudocoelomate
  28. Coelomate
    •“true” coelom lined with mesoderm
  29. •“true” coelom lined with mesoderm
    coelomate
  30. •2 groups of coelomates
    –Protostomes

    –Deuterostomes
  31. –Protostomes

    –Deuterostomes
    •2 groups of coelomates
  32. HYDROSTATIC SKELETON
    • •Formed by coelom
    • •Allows movement without fins/limbs
    • moves by controlling muscle contactions
  33. •Formed by coelom
    •Allows movement without fins/limbs
    Moves by controlling muscle contractions
    Hydrostatic skeleton
  34. LIMBS
    •Allow fast controlled movement

    •Unjointed: sac-like

    •Jointed:separate segments

    –faster than unjointed
  35. 4 types of feeders
    –suspension

    –deposit

    –fluid

    –mass
  36. –suspension

    –deposit

    –fluid

    –mass
    4 types of feeders
  37. SUSPENSION FEEDERS/ Filter feeder
    • •Filter food particles suspended in
    • water
  38. •Filter food particles suspended in
    water
    Suspension/filter feeder
  39. Deposit Feeders
    •Eat their way through a substrate

    • •“Food” contained with soil,
    • deposits, etc

    •Simple mouthparts
  40. •Eat their way through a substrate

    •“Food” contained with soil,
    deposits, etc

    •Simple mouthparts
    Deposit feeder
  41. Fluid Feeders
    •Drink liquids

    • •Mouthparts straw-like or
    • sponge-like
  42. •Drink liquids

    •Mouthparts straw-like or
    sponge-like
    Fluid feeders
  43. MASS FEEDERS
    • •Take chunks of food into their
    • mouths

    •Mouthpart structures bite or scrape
  44. •Take chunks of food into their
    mouths

    •Mouthpart structures bite or scrape
    Mass feeder

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