Which of the following processes is directly responsible for growth in living organisms ? a) the division of cells into two identical cells b)the movement of water across a cell membrane c)the production of reproductive cells called gametes d)the exchange of the gases oxygen and carbon dioxide

A) the division of cells into two identical cells

Explanation:

Growth in living organisms can be define as the increase in size, and shape of the organism with age. It typically involves the increase in the rate of cell division. The cell division will help in increasing the number of cells in the organisms, it can be achieved by cellular reproductive mechanism which is called as mitosis. During cell division a single cell divides into two identical daughter cells.

The cells will divide and transform into a specialized tissue system which can help in performing functions necessary for the overall growth of the living being.

On the basis of the above explanation, the division of cells into two identical cells is the correct option.