Question

PLEASE HELP: Why do we need 250 different kinds of cells?

Answer 1

Because we do  or we would die

Answer 2

Each cell has a job. Some form together to become skin, and some are your organs. Others are your blood and bone, And most importantly some are your defense. Without one of these cells, humans wouldn't exist, no bone cells, we wouldn't move. No blood, we die. No fighting bad bacteria, we die. As you can see each one is important :)