The function of IgD on the surface of B cells is to:

a) present antigen to helper T cells.

b) present antigen to cytotoxic T cells.

c) bind antigen so that it can be internalized by the B cell and presented to helper T cells on class II MHCs.

d) bind antigen so that it can be internalized by the B cell and presented to cytotoxic T cells on class I MHCs.

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

look at this it will give you up to 17 answers