Endocrine and reproduction
2 humanreproductionsystem-130922023408-phpapp01
Function: Produce and deliver fertile sperm to the female reproductive tract Produce the hormone Testosterone Job: Fertilize the female egg.
1 Topping off: A mechanism of first- male sperm precedence in a vertebrate Adam G. Jones, Erika M. Adams, and Stevan J. Arnold.
Male Reproductive System
Mating seasons and Plant reproduction
