Question

Where does the exchange of oxygen, nutrients, and wastes occur?

A. in capillaries

B. in arteries

C. in the lungs

D. in the atria

Answer 1

nvm i got it

Answer 2

Close the question please.

Answer 3

They exchange in the capillaries.The capillaries are the most important part of a closed circulatory system because exchange of nutrient and waste molecules takes place across their thin walls.

Answer 4

a