The fact that there are about a million different antigen receptors possible in human b cells is based on

2polhiswhere is the energy in a glucose molecule stored? ooa. inside the carbon atomsb. inside the protonsc. in the bonds between the atomsood. inside the hydrogen atoms

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

The cluster of developing cells from conception until birth is called an