Question

the alveoli in lungs are covered with blood Capillaries. give reason

Answer 1

Yes they are coverd with the Blood capillaries. ..so that here is exchange of gases can take place to the Blood streams coming and going to the heart directly....

Answer 2

alveoli in lungs are covered with blood capillaries so as to facilitate the exchange of gases from alveoli to blood capillaries. Oxygen diffuses from alveoli to blood.