Developing ovarian follicles primarily secrete developing ovarian follicles primarily secrete progesterone estrogens luteinizing hormone follicle-stimulating hormone human chorionic gonadotropin

What is histamine and what is its role in allergic reactions

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.