Describe the citric acid cycle in relation to aerobic respiration

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

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?

Blank is a rock with a find dark texture that makes up the oceanic crust