6. what is the function of vitamins in a healthy diet?
vitamins are not an important part of a healthy diet.
vitamins are the basic building material of all body cells.
each vitamin performs a different necessary function.
vitamins are the body's main source of energy,

What is the overall purpose of the menstral cycle

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship