Question

Where does the maximum exchange of material between blood and surrounding cells occur​

Answer 1

Explanation:

The exchange site of material of blood cells to the surrounding cells are the smallest blood vessels which cell walls are one cell thick. This is called capillaries. By Crossing blood capillary's thin wall the exchange of materials between the blood cells and the surrounding cells happens.

Answer 2

Answer:

capillaries

The exchange site of material of blood cells to the surrounding cells are the smallest blood vessels which cell walls are one cell thick. This is called capillaries. By Crossing blood capillary's thin wall the exchange of materials between the blood cells and the surrounding cells happens