Zoology-Chapter 9

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Author:
taylynee
ID:
52919
Filename:
Zoology-Chapter 9
Updated:
2010-12-02 16:54:13
Tags:
zoology
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Description:
Architectural Patterns of Animals
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  1. ZOOLOGY
    branch of biology focusing on the structure, function, behavior and evolution of animals
  2. PROTOPLASMIC
    unicellular organism
  3. CELL
    loosely organized cells (sponges)
  4. TISSUE
    functional coordination between cells of similar type
  5. ORGAN
    specialized organs consisting of multiple tissue types
  6. ORGAN SYSTEM
    multiple organs at work together for specific function
  7. ASYMMETRY
    no symmetry; irregular in shape
  8. SPHERICAL SYMMETRY
    mirror images produced from any plane passing through center
  9. RADIAL SYMMETRY
    mirror images produced from any plane passing through the longitudinal axis
  10. BILATERAL SYMMETRY
    only one plane produces mirror images
  11. SAGITTAL PLANE
    imaginary plane dividing the left and right sides
  12. TRANSVERSE PLANE
    imaginary plane dividing the head side from the back/anus side
  13. FRONTAL PLANE
    imaginary plane dividing the tummy side from the back side
  14. DORSAL
    backside
  15. VENTRAL
    front/tummy side
  16. ANTERIOR
    head end
  17. POSTERIOR
    back/anus end
  18. PROXIMAL
    close
  19. DISTAL
    distant
  20. TISSUE
    cellular level of organization
  21. DIPLOBLASTIC
    • 2 embryonic tissue layers:
    • => endoderm
    • => ectoderm

    connected by mesoglea
  22. ENDODERM
    inner layer--gastrodermis
  23. ECTODERM
    outer layer--epidermis
  24. TRIPLOBLASTIC
    • 3 embryonic tissue layers
    • =>endoderm
    • =>mesoderm
    • =>ectoderm
  25. ACOELOMATE
    no body cavity
  26. PSUEDOCOELOMATE
    body cavity not surrounded by mesoderm
  27. EUCOELOMATE
    body cavity surrounded by mesoderm

    --known as peritoneum
  28. PROTOSTOMES
    • 1st opening (mouth)
    • spirical determinate cleavage
    • mouth forms from blastropore
    • schizocoelous--body cavity from split mesoderm cell
  29. DUETERSTOMES
    • radial indeterminate cleavage
    • mouth not from blastropore
    • enterocoelous--body cavity from gut

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