animal .txt

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Author:
smaraya
ID:
152425
Filename:
animal .txt
Updated:
2012-05-19 01:47:20
Tags:
blastula porifera American River college campbell reece 6th edition
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Description:
reece and campbell 6th edition chp18
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  1. Eg phylum porifera
    Sponges
  2. Symmetry
    Radial but some lack symmetry
  3. Motility
    Sedentary
  4. Choanocytes
    Inner flagellated cells
  5. How do they feed
    Suspension feeders
  6. Inner flagellated cells
    Chaonocytes
  7. Feed on
    Phytoplankton
  8. What do choanocytes do
    Sweep water through the sponges body
  9. Amoebocytes
    Supportive skeletal fibers
  10. Amoebocytes made of
    Spongin n spicules
  11. Spongin n spicules are
    Protein and mineral particles
  12. Suspension feeders also known as
    Filter feeders
  13. Filter feeders are
    Sifting through food particles
  14. Do sponges have nerves n muscles
    No
  15. Which phylum first showed true tissue
    Cnidarians
  16. Cnidaria- phylum
    Cnidarian
  17. Cnidarian ex
    Hydra jelly fish corals sea anemone
  18. Symmetry
    Radial
  19. Types of tissues
    Ectoderm and endoderm
  20. Oldest known animal fossils
    PreCambrian
  21. Could softball the animals be the first to have arose
    No
  22. What ignited d cambrian explosion
    Hard shell led to feeding, motility, protection complex predator prey relationship. Atmospheric oxygen help mobility
  23. Difference between colonial organisms and multicellular
    Multicellular organisms are extensively specialized
  24. Define blastula
    Hollow ball of cell
  25. Define gastrula
    1 side of blastula folds inwards
  26. What is a larvae
    immature individual that looks different from the adult. Larva undergoes a major change of a body form Where an adult undergoes sexual maturation
  27. hydrostatic skeleton
    In soft-bodied animals, a noncompressible fluid in the body cavity provides a rigid structure against which muscles contract, moving the animal.

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