Diffusion of gases occurs through the _(i)_ surrounding the _(ii)_.
(i) arteries (ii) air sacs
(i) veins (ii) air sacs
(i) blood capillaries (ii) air sacs
(i) hemoglobin (ii) air sacs
Diffusion of gases occurs in the alveolar region only and not in the other parts of the respiratory system. Why?
1) Fermentation is type of __________
a) aerobic respiration b) anaerobic respiration
2) Through what does the exchange of gases occurs in plants
a) stomata b) diffusion