I thinks its a layer of soil with characteristic properties, sorry if its wrong I'm a beginner
Answer:
A) B cells produce plasma cells, which secrete antibodies into the blood
Explanation:
There are two types of lymphocytes present in blood. These are namely, B lymphocytes and T lymphocytes. The B lymphocytes are activated with help of T lymphocytes. The activated B cells divide and produce a large number of cells that differentiate into the plasma cells. These plasma cells finally produce antibodies against specific antigens.
Both are used for energy to the body.
Answer:
Nuclear fusion.
Explanation:
In nuclear fusion, two or more small nuclei combine to form a single, larger nucleus.