Your best friend always looks in the right side is very positive your friend has which personality trait

Maintaining a healthy weight allows the respiratory system to work more effectively because a. oxygen is being delivered more adequately. b. the heart does not have to pump as forcefully. c. the capillaries are constricted. d. the lung capacity allows for small amounts of air.

Why do you need two different circuits of blood vessels in your body?

Why is mental-emotional health important? check all that apply. encourages others one feel better improves physical fitness fosters better relationships one do better in school enables one to enjoy free time