which statement best represents how structure relates to function?

a.) many tropical birds can be taught to speak?

b.) some insects live longer than others.

c.) great white sharks have sharp serrated teeth for tearing into their prey.

d.) a horses mane is often black.

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?

What is the ecological role of food chains and food webs

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of