1. Endocrine• Produces chemical messages for the body• Controls body functions with chemicals• Chemical are called hormones• Location where chemicals are produced…

1. Endocrine• Produces chemical messages for the body• Controls body functions with chemicals• Chemical are called hormones• Location where chemicals are produced…

Slide 1 Slide 2  Function:  Produce and deliver fertile sperm to the female reproductive tract  Produce the hormone Testosterone  Job:  Fertilize the female…

Slide 1 1 Topping off: A mechanism of first- male sperm precedence in a vertebrate Adam G. Jones, Erika M. Adams, and Stevan J. Arnold Slide 2 2 Introduction Materials and…

1. GENERATIF REPRODUCTION IN ANIMALSPowerPoint Lectures forBiology, Seventh EditionNeil Campbell and Jane ReeceLectures by Chris RomeroCopyright © 2005 Pearson Education,…

Male Reproductive System Male Reproductive System Testis – male gonads Epididymis - structure in the male reproductive system in which sperm fully mature and are stored…

Mating seasons and Plant reproduction When does mating occur? Usually mating occurs just prior to fertilisation â sperm does not survive for long Females of some animals…