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Organismal Development Part 3

Organismal Development Part 3

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Organismal Development Part 3

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  1. Organismal Development Part 3 Male Animals

  2. Mitochondrion Intermembrane space Outer membrane . Free ribosomes in the mitochondrial matrix Inner membrane Cristae Matrix Mitochondrial DNA 100 nm

  3. Phermones

  4. Earthworms are hermaphrodites

  5. Protogynous(Male is blue)

  6. External Fertilization

  7. Internal Fertilization required

  8. Epididymis Seminiferous tubule Testis Cross section of seminiferous tubule Spermatogenesis Spermatogonium Sertoli cell nucleus Mitotic division, producing large numbers of spermatogonia Differentiation and onset of meiosis I Primary spermatocyte (in prophase of meiosis I) Meiosis I completed Secondary spermatocyte Meiosis II Lumen of Seminiferous tubule Early spermatids Spermatids (at two stages of differentiation) Differentiation Neck Sperm cells Tail Midpiece Head Plasma membrane Acrosome Nucleus Mitochondria

  9. Secondary Sexual Characteristics