Which of the following best represents the relationship between physical fitness and exercise?
a. physical fitness requires more strenuous activity than exercise. b.exercise is a subset of physical fitness. c.physical fitness is the same as exercise. d.there is no relationship between physical fitness and exercise.

When do people generally experience rapid growth for a second time? a. between the ages of 3 and 9 b. between the ages of 9 and 12 c. between the ages of 13 and 20 d. between the ages of 25 and 29 which action occurs in the third stage of cell division? a. the nuclear material of cell is copied exactly. b. the nuclear membrane disappears. c. the cell forms two nuclei d. the nuclear material separates, with half moving to either side of the cell.