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this image shows the inside of a human lung. there is a space between the alveolar sac and the capillary where oxygen and carbon dioxide diffuse between the lung and blood. which structures form this blood-air barrier?

a. structures a and b
b. structures b and c
c. structures c and d
d. structures d and b

How does society place such a great emphasis on the value of health and wellness? what are benefits to active living?

What factors characterize a healthy relationship that contributes to positive social well-being?

Many1. why should teens be aware of health issues such as healthy sexuality, dealing with conflict, healthy decision making and cpr? 2. a) what are the 3 most important aspects/skills to learn in order to play volleyball activity well? b) explain how each aspect/skill is important when playing the game. c) describe 2 points of strategy you could use to you be successful at this activity.