Light activities (requiring 2 to 3.9 METs) such as making a bed, washing dishes while standing, and preparing food are not intense enough to be considered worthwhile

health-enhancing

aerobic

fun

Bloodborn pathogens are infectious microorganisms carried by what?

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.

Fibers from the medial side of each eye cross over to the opposite side of the brain at the