Well you didn’t really give us the list of words so I’m not able to answer this
Answer:
C. antigen-antibody reactions
Explanation:
human blood group is determined by the presence of antigens on the red blood cells which are specific proteins.
so specific antibodies are used against these antigens to determine the type of blood group after the reaction.
Answer:
to get a Repeating answer so you know the first time wasn't a fluke
Explanation:
