What is the purpose of testosterone in the development of the male?

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

In what ways does the study of human population differ from the study of wildlife ecology