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Human reproduction

 Human reproduction :



1 ) Sequential steps in the process of human reproduction gametogenesis , insemination internal fertilization , zygote formation and embryogenesis , gestation and parturition followed by lactation .

( 2 ) Primary Sex organs - testes ( testis : singular ) in male and ovaries ( ovary : singular ) in female . 

 ( 3 ) Secondary or accessory Sex organs - Organs other than testis in male and organs other than ovaries in female . 

 4) Secondary sexual characters in males - Presence of beard , mustache , hair on the chest , muscular body , enlarged larynx ( Adam's apple ) , etc. 



 5) Secondary sexual characters in females - Developed breast , broader pelvis , high pitched voice , etc. 

 6) Sexual dimorphism: The phenomena by which sexes can be identified externally.

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