What is the MOST critical limitation of direct and indirect calorimetry methods?
A. They are less accurate than other methods.
B. They give data only under physically active conditions.
C. They must be performed in a laboratory or special chamber.
D. The necessary supplies are difficult to acquire.
Answer: C
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Iliana is due to give birth to a girl in March. Before she became pregnant, IIiana weighed 135 pounds and was in the healthy BMI range for her height. Based on this information, her physician will recommend that she gain ________ pounds during her pregnancy.
A. 25 to 35 B. 35 to 45 C. 30 to 40 D. 40 to 50
In mammalian DNA, approximately what percentage of cytosines are methylated?
A. 19% B. 2–5% C. 6–8% D. 10% E. 12–15%
Life span refers to
A. the delay of the onset of disabilities caused by chronic disease. B. the average length of life for a cohort of people born in a specific year. C. the promotion of longevity through healthful lifestyle changes. D. the maximum number of years that humans live.
What is a strength of laboratory-based studies?
a. It can raise questions to pursue through other research. b. It can determine the effects of a variable. c. Results from animal studies can be applied to human beings. d. The list of possible causes of disease can be expanded. e. It can control variables that may influence the prevention of a disease.