The abbreviation for the fluid inside the ventricles which surrounds the brain and spinal cord is

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

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

Which law represents a balanced chemical equation?