Hiv antibodies:
a. are present in all people.
b. indicate an hiv infection.
c. can be indicative of a liver disorder.

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

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.

Which part of the female reproductive system produces sex hormones and contains eggs? the uterus the ovaries the vagina the fallopian tubes