Answer:
As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level.
Explanation:
Thin air exerts less pressure than air at a lower altitude.
Because you need respiration to able to function of the rest of organs
Answer:
Physiological deals with body and behavioral deals with the internal mind.
Explanation:
Behavioral or behavioral psychology is a branch of psychology that focuses on the study and alteration of people's behaviors, including their actions, emotions, and thoughts.
Physiological refers to to the branch of biology that deals with the normal functions of living organisms and their parts. That means it deals with all body part's information and their function.