Which of these is required in order for a physical activity to be classified as exercise?
A. Duration must exceed 30 minutes.
B. Heart rate must be greater than 75% of your age-adjusted maximum.
C. All physical activity is exercise; there is no requirement other than movement
D. It must be planned, repetitive, and performed to attain a physical fitness goal.
Answer: D
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Which of the following components that are essential for rearrangement of the IgH and IgL loci are not utilized in rearrangement of the TCR loci?
A. RAG-1/2 B. Artemis C. TdT D. RSS sequences with spacers of 12 bp and 23 bp E. All of the above are essential for rearrangement of the TCR loci
The biguanides work by ____________.
a. increasing insulin production and by improving peripheral insulin activity b. delaying digestion of complex carbohydrates c. decreasing hepatic glucose output and enhancing insulin sensitivity in the muscles d. stimulating the beta cells of the pancreas to produce insulin e. decreasing insulin resistance/improving sensitivity to insulin in muscle and adipose tissue
The behavioral effects of LSD last approximately how long?
a. 1-2 hours c. 4-6 hours b. 2-4 hours d. 6-8 hours
Which of the following roles does a primary care physician play when under contract with an HMO?
A) Supervisor of physician assistants B) Coordinator of care and gatekeeper to specialists C) Sole provider of care D) Public health educator and provider of preventive services