Hematopoiesis occurs in which of the following?

liver

bone marrow

kidneys

central nervous system

The correct answer will be option - bone marrow.

Explanation:

Hematopoiesis is the process of the formation of the cellular components of the blood from the stem cells.

The cellular components are formed in the hematopoietic system which includes liver, bone marrow and spleen. In infants, the blood cells are formed continuously from the liver, spleen and bone marrow but in adults, the blood cells are formed from the bone marrow mainly.

Thus, option - bone marrow is the correct answer.