Sexual Reproduction

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Sexual Reproduction
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Meiosis

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

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Symmetry Morphology

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

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Germ Layers

• Diploblastic- two distinct germ layers
• Triploblastic- addition of mesoderm

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Developmental Patterns

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

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Eucoelomates/Coelomates

• Protostomes
• blastopore --gt mouth
• spiral Cleavage
• determinate Cleavage
• Schizocoely

• Deuterostomes
• blastopore --gt anus
• radial Cleavage
• indeterminate Cleavage
• Enterocoely

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