According to Boyle's law, the pressure of a gas ________ if the volume of its container increases.
A. remains the same
B. decreases
C. increases
Answer: B
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Which of the following statements best describes angular movements?
A) They change (increase or decrease) the angle between two bones. B) They occur only between bones with flat articular processes. C) They turn a bone along its own long axis. D) They allow movement only in one plane.
The color receptors in the retina are most sensitive to light waves that are
A) red, blue, and yellow. B) green, yellow, and purple. C) red, green, and blue. D) orange, green, and purple.
Which of the following is an effect of aldosterone on principal cells?
A) increased number of Na+/K+ pumps in the apical membrane B) increased number of open Na+/K+ channels in the basolateral membrane C) decreased number of open Na+/K+ channels in the basolateral membrane D) increased number of open Na+/K+ channels in the apical membrane ++ E) decreased number of Na /K pumps in the basolateral membrane
Which of the following is NOT true about anaphylactic shock?
A. Histamine has increased the permeability of capillaries. B. There is a sudden and life-threatening drop in blood pressure. C. Epinephrine can delay the body's adverse response. D. There is a sudden and life-threatening rise in blood pressure.