how many words is it suppoed to be?
A cell, they are the tiniest living thing on earth.
Different types of blood contact different kinds of antigens and antibodies. For example, Type A blood has A antigens and B antibodies, antibodies being the thing that fights B antigens. Type B blood has B antigens and A antibodies. So if someone with type B gets transfused with Type A blood, the person's antibodies will attack the new blood.
Answer:
c
Explanation:
The mouth doesn't produce sperms.
