Which field of biology studies the structures of different species of animals

Biology 1c cumulative exam i need awsners

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

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?