Question

What two structures generate the cells responsible for immune responses?

B lymphocytes and T lymphocytes
thymus and lymphocytes
bone marrow and lymphocytes
bone marrow and thymus

Answer 1

D

Step-by-step explanation:

Answer 2

The main cells of the immune system are lymphocytes known as B cells and T cells. B cells are produced and mature in bone marrow. T cells are also produced in bone marrow, but they mature in the thymus.