Why is Type O- the universal donor? Check all that apply. Type O- has no antigens on its red blood cells, so the red blood cells can’t be attacked by antibodies of other blood types.

Type O- has antigens on its red blood cells, so the red blood cells can be attacked by antibodies of other blood types.

Type O- has no Rh antigen, so the red blood cells can’t be attacked by the Rh antibody.

Type O- has the Rh antigen, so the red blood cells can be attacked by the Rh antibody.