Deoxyribonucleic acid, or DNA, includes which of the following?

A. four bases
B. proteins
C. a nucleus
D. a triple helix


Answer: A

Health & Biomechanics

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A substance released by the pituitary gland that stimulates the adrenal glands to release other hormones in the initial stage of stress is called

A. cortisol. B. renin. C. endorphins. D. adrenocorticotrophin hormone (ACTH).

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Which type of blood vessel carries blood from the body and lungs to the heart?

A) artery B) arteriole C) vein D) capillary

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Effective verbal communication skills include which of the following?

A. I statements, a clear message, tone of voice B. tone of voice, I statements, nodding C. empathy, eye contact, tone of voice D. eye contact, tone of voice, I statements

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A patient has a nodule on the thyroid gland. To determine whether the nodule is benign or malignant, which of the following tests would be best to perform?

A. Antithyroid antibodies B. Ultrasonography C. Fine needle aspiration biopsy D. Isotopic thyroid scan E. TSH blood levels

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