It is a study of ECOSYSTEM and known as ECOLOGY......
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:
B. Mitigating problems associated with rising sea
Explanation:
The nucleus and the ribosomes to synthesize protein synthesis.