The testes are contained within the scrotum, which is located outside of the body cavity. Why is this location important? A) It allows for mixing of sperm and urine.

B) It provides an exit for the sperm to the outside world.

C) It provides additional protection for the testes.

D) It provides an environment that is a lower temperature for development

In order to clone adult animals, scientists typically begin with a(n)

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

How is the carbon cycle related to global warming ?