During the exchange of air in your lungs, your body seeks to keep oxygen and release ________ which will then exit your body.

Question

A.) microorganisms
B.) carbon dioxide
C.) plasma
D.) mucus
It is important that you maintain a healthy weight both for your overall health and so that your respiratory system can _____________________.
A.) deliver oxygen more adequately.
B.) pump blood more forcefully from the heart.
C.) keep capillaries constricted.
D.) allow for smaller amounts of air to enter your lungs.

Answer 1

B.) carbon dioxide
A.) deliver oxygen more adequately.