Oral lesions called Koplik's spots are seen in patients with ________.

A. influenza
B. measles
C. rubella
D. mumps
E. croup


Answer: B

Biology & Microbiology

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Changes in temperature and pH can decrease an enzymes activity by breaking ________.

A. chemical bonds. B. covalent bonds. C. ionic bonds. D. hydrogen bonds. E. none of the above is correct.

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About ____ couples are affected by infertility

a. 0.5% of b. 1 in 6 c. 1 in 10 d. 1 in 100 e. 25% of

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Membrane sterols, such as cholesterol, function in animal cell membranes to ____

a. increase the rate of diffusion b. store cellular energy c. facilitate ion transport d. maintain membrane fluidity e. receive chemical signals

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Which gland is associated with biological clocks or biorhythms?

a. pineal b. parathyroid c. hypothalamus d. pituitary e. thymus

Biology & Microbiology