While auscultating heart sounds during a checkup, Andy's doctor hears a high-pitched sound during ventricular contraction. Which type of valve could cause this?
A) incompetent tricuspid valve
B) deficient pulmonary semilunar valve
C) insufficient mitral (bicuspid) valve
D) stenotic aortic semilunar valve
D
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Sharks and rays increase their buoyancy by accumulating __________ in their livers
A) Cholesterol B) Squalene C) Triglycerides D) Wax esters Fill in the blank with the correct answer.
Which of the following is an example of a kinetic consideration?
A. muscle force producing a vertical jump B. impact force landing from a jump C. both A and B D. neither A nor B
Where are releasing and inhibiting hormones made?
A) hypothalamus B) posterior pituitary (neurohypophysis) C) thyroid gland D) anterior pituitary (adenohypophysis)
Which of the following are consistent with facilitated diffusion?
(1) movement is against a concentration gradient (2) movement is with a concentration gradient (3) involves a carrier molecule (4) involves cotransport (5) involves counter transport (6) exhibits competition and saturation A. 1, 2, 4, 5, 6 B. 2, 3, 5, 6 C. 2, 3, 4, 6 D. 1, 3, 4, 5, 6 E. 2, 3, 6