It's good to be in positive energy balance when you're

a. a fully grown adult in good health.
b. trying to deal with stress.
c. recovering from the flu.
d. beginning an exercise program.

c. recovering from the flu.

positive energy balance is a good place to be if you’re growing, as in childhood and adolescence; repairing, as in recovery from a broken leg or the flu; or pregnant.

Warming up prepares the body for exercise in what way? a. muscularly b. cardiovascularly c. neurologically d. all of the above

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.

Explain different ways infections from different organisms can be treated.