Weight management is one benefit of participating in sports. Which sentence is true regarding weight management?
B) Regular participation in sports helps preserve muscle mass.
B improve your posture and appearance
Answer:
The smallest bronchioles end in tiny air sacs, called alveoli. They inflate when a person inhales and deflate when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream.
Explanation:
C to model the concepts of the presentation
