Which of the following is NOT true about the effects of exercise on muscles?
AIt increases muscle tone.
BIt adds material to the outside of the muscle cells.
CIt increases the efficiency of the heart.
DIt can cause muscles to visibly increase in size.
AIt increases muscle tone.
BIt adds material to the outside of the muscle cells.
CIt increases the efficiency of the heart.
DIt can cause muscles to visibly increase in size.