Melatonin secretion influences ____
a. secondary sex characteristics
b. glucagon production
c. adrenal function
d. seasonal affective disorder
e. Graves’ disease
ANSWER: d
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Almost all the large mammals disappeared from North America by about 10,000 years ago.
A. hotspot B. habitat loss C. edge effects D. megafaunal extinction E. extinction vortex
Which of the following is the best description of an atom's physical structure?
A) An atom is a solid mass of material. B) The particles that form an atom are equidistant from each other. C) Atoms are little bubbles of space with mass concentrated at the center of the bubble. D) Atoms are little bubbles of space with mass concentrated on the outside surface of the bubble.
Which of the following is an example of lag information?
A. Measurement of price sensitivity of customers in a given city B. Measurement of rate of purchasing propensity following exposure to advertising C. Measurement of faulty units in response to a recently implemented inventory method D. None of the answers is correct.
Given the following components of the cardiac conduction cycle, which one of the following best describes the movement of the stimulus that causes a heart contraction? A. atrioventricular bundle B. sinoatrial node C. atria D
atrioventricular node E. Purkinje fibers F. ventricles A) B, C, D, A, E, F B) B, D, A, C, E, F C) D, A, E, F, B, C D) A, D, E, B, C, F E) B, C, D, F, A, E