Cholesterol is a
A. carbohydrate.
B. component of DNA.
C. precursor of steroid hormones.
D. vitamin.
E. precursor of bile pigments.
Answer: C
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To be reabsorbed by the tubules, how many distinct barriers must a substance cross?
a. two b. three c. four d. five e. six
Which type of receptor responds to pressure changes in liquids and gases?
A) muscle spindles B) proprioceptors C) baroreceptors D) Golgi tendon organs
What component allows semen to temporarily coagulate, preventing it from leaking back out of the female reproductive tract, once ejaculated?
A) alkaline pH B) clotting proteins and enzymes C) fructose D) antimicrobial chemicals
Explain the decrease in PO2 from the pulmonary venules to the blood arriving in the peripheral capillaries of the systemic circuit
What will be an ideal response?