Stimulates the development of early spermatids. 

During spermiogenesis _____. 

The placenta, a vitally important metabolic organ, is made up of a contribution from mother and fetus.  Which portion is from the fetus? 

Which hormone maintains the viability of the corpus luteum? 

During oogenesis, the secondary oocyte is arrested in what meiotic stage? 

Leads to the development of a morula and then a blastocyst.

Aldosterone is a hormone that causes the renal tubules to reclaim sodium ions from the filtrate. 

Forms the mothers part of the placenta. 

Which hormone is secreted by trophoblast cells and later the chorion? 

Which of the following conditions will not destroy the vitamin content of foods?