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Sexual Reproduction

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Sexual Reproduction Meiosis function: production of gametes where: gonads of the mature adult; ovaries & testes. what: reduction & division result: haploid (1n) cells ... – PowerPoint PPT presentation

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Title: Sexual Reproduction


1
Sexual Reproduction
2
Meiosis
  • function production of gametes
  • where gonads of the mature adult ovaries
    testes.
  • what reduction division
  • result haploid (1n) cells

3
Symmetry Morphology
  • Symmetry
  • bilateral
  • radial
  • asymmetrical
  • Morphology
  • cephalization- the tendency to have a head

4
Germ Layers
  • Diploblastic- two distinct germ layers
  • Triploblastic- addition of mesoderm

5
Developmental Patterns
  • Acoelomates
  • coelom filled with mesoderm
  • Pseudocoelomates
  • fluid filled cavity derived from embryonic
    blastocoel.
  • Eucoelomates/Coelomates
  • peritoneum lines the coelomic cavity

6
Eucoelomates/Coelomates
  • Protostomes
  • blastopore --gt mouth
  • spiral Cleavage
  • determinate Cleavage
  • Schizocoely
  • Deuterostomes
  • blastopore --gt anus
  • radial Cleavage
  • indeterminate Cleavage
  • Enterocoely

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