Chapter 46 Animal Reproduction Jara Bhuiyan & Nafisa Reya
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Transcript of Chapter 46 Animal Reproduction Jara Bhuiyan & Nafisa Reya
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Chapter 46
Animal ReproductionJARA BHUIYAN & NAFISA REYA
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Sexual and Asexual Reproduction
ASEXUAL REPRODUCTION
FissionBudding FragmentationParthenogenesis
SEXUAL REPRODUCTION
Why sex?
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External and Internal fertilization
Fertilization in some large water bugs is internal, fewer offspring produced, and greater protection shown.
Many amphibians produce by external fertilization, which produce a lot of offspring.
Different patterns of reproduction
Ovulation
Hermaphroditism
Sex Reversal
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Female Reproductive System
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Male Reproductive Structures
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Sperm and Egg DevelopmentSpermatogenesis
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Hormonal Control of Male Reproduction
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Reproduction Cycle of Human Female
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Development of Embryo in the Uterus
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Sources
• http://en.wikipedia.org/wiki/File:Mating_earthworms.jpg• http://www.saburchill.com/ans02/chapters/chap051.html• http://www.tulane.edu/~wiser/protozoology/notes/intes.html• http://www.sciencephoto.com/images/download_lo_res.html?id=806480222• http://bound4life.com/blog/2010/03/31/fetal-pain-nebraska-law• http://bio1151.nicerweb.com/Locked/media/ch46/androgens.html• http://iceteazegeg.wordpress.com/2009/02/25/gametogenesis/spermatogenesis/• http://www.ldysinger.com/ThM_599d_Beg/02_Biology/02_spermat-oogen.htm• http://www.health-res.com/male-and-female-reproductive-systems/• http://faculty.uca.edu/johnc/animal_structure_and_function.htm• http://chrishedstrom.blogspot.com/2007/05/giant-water-bug.html• http://www.nicerweb.com/bio1152/lesson16.html