In humans, carbon dioxide that is excreted passes from the blood directly into the :

Which of the following is the primary site for the exchange of inhaled air in the human respiratory system?

What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.

Do all cells use oxygen to produce energy?

Where does anaerobic respiration occur in the human body?

Write two different ways in which glucose is oxidized to provide energy in the human body. Write the products formed in each case.