Oversecretion of aldosterone causes
A. decreased reabsorption of Na+ by the kidney.
B. increased reabsorption of phosphate ions by the kidney.
C. increased secretion of K+ by the kidney.
D. decreased secretion of Ca2+ by the kidney.
E. decreased secretion of K+ by the kidney.
Answer: C
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The expensive tissue hypothesis includes the argument that
a. evolution occurs in the face of cost-benefits trade-offs. b. maintaining the membrane potential consumes much energy. c. there is a corresponding decrease in the size of the digestive tract that parallels the increase in brain size. d. large brain sizes require high quality diets to support them, and high quality diets yield nutrients easily and adequately to smaller digestive tracts. e. all of these.
The word element _____ means protection. Select one:
a. -megaly b. -phylaxis c. -itis d. -cytes
A vein responsible for draining blood from the upper limb is the
A. azygos vein. B. portal vein. C. cephalic vein. D. peroneal vein. E. common iliac vein.
When the heart is not ejecting blood into the arterial system, the pressure in the arteries falls to zero as blood drains off into the rest of the vasculature
Indicate whether the statement is true or false