How does digested food finally reach the bloodstream?

A. It passes through the gullet into the blood.
B. It is absorbed into the blood through blood vessels.
C. It is absorbed into the blood through the walls of the lungs.
D. It passes from the small intestine into the large intestine, then into the blood.

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 of the following must be treated under the care of a physician and is mainly considered a medical condition? a. scoliosis b. lordosis c. kyphosis d. all of the above

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