This answer to this question is Paramecia, cilia
Answer: B. the phagocytotic barrier, which is a part of innate immunity
Explanation:
Cells die over the course of life as new ones are formed which makes the body able to grow at a natural pace. Rapid cell division causes cancer because it is cells being crowded from too much cell division.
Answer;
Antibodies.
The human immune system fights infection by releasing antibodies.
Explanation;
The immune system acts to defend the body against pathogens such as viruses, bacteria and fungi that may cause a disease.
It does so using various types of mechanism, one is by the production of antibodies.
Antibodies are proteins that are produced by the B-cell and are used by the immune system to identify and neutralize pathogens.
These antibodies also activates proteins known as complements which assist in the killing of bacteria, viruses and the infected cells.
