Question

Name and explain the two types of immune responses in humans.

Answer 1

The two major types of immunity are innate or natural and acquired or adaptive.

Innate immunity is inherited by the organism from the parents and protects it from birth throughout life. It is also known as non-defensive mechanism. It includes physical barrier like skin, chemicals in blood etc.

The immunity that an individual acquires after the birth is called acquired or adaptive immunity. T cells and B cells are the major immune cells. The T cells provide cell mediated immunity while the B-cells provide humoral immunity.