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This paper explains that sexual reproduction involves the coming together of genetic material from two parents to form progeny that combine genes from both of them. The author points out that the dominant mode of reproduction among vertebrates is oviparity, or ?egg laying?; but mammals reproduce through viviparity, or by retaining the egg(s) within the reproductive tract until embryonic development is complete. The paper relates that the process of sexual reproduction includes mating, sexual contact or fertilization, and incubation for embryonic development.
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Making Babies (2004, November 30) Retrieved July 06, 2020, from https://www.academon.com/essay/making-babies-53904/
"Making Babies" 30 November 2004. Web. 06 July. 2020. <https://www.academon.com/essay/making-babies-53904/>