The sun is the source of
a. all energy for your body
b. ultraviolet radiation that can cause cancer
c. oxygen, which supports our breathing
d. none of the above

Which of the following statements is true? bacteria reproduce by budding. egg and sperm cells reproduce by mitosis. asexual reproduction usually occurs very slowly. mitosis can only occur in cells with nuclear membranes.

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.

Describe in your own words three purposes of human services.