Which method of assessing body fat percentage involves an electric current flowing through the body?
A. underwater weighing
B. bioelectrical impedance
C. dual-energy X-ray absorptiometry
D. skinfold thickness
B
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A reputable weight-loss program will provide customers with honest predictions of success and ________.
a. with testimonials from previous, successful users b. with testimonials from medical professionals c. with statistics on weight cycling d. will list the psychological benefits of weight loss e. will explain the associated risks
A high-fiber diet might help decrease blood cholesterol levels by
A) trapping cholesterol in pockets in the large intestine. B) causing fiber to bind with bile and more cholesterol to be excreted. C) preventing ketosis. D) keeping stools soft.
Segments of genes that provide instructions for the manufacture of enzymes and other proteins by cells are called:
a. DNA. b. genes. c. RNA. d. chromosomes.
People who are lactose intolerant:
a) do not produce enough insulin. b) have an allergic reaction to lactose. c) have inadequate production of the enzyme lactase. d) produce excess amounts of pancreatic enzymes.