Which of the following situations best represents a homeostatic mechanism? A) A person who becomes very nervous begins to sweat
profusely. B) After going outside on a hot day, the core body temperature increases. C) Increasing the size of fast food restaurant portions causes body weight to increase. D) After eating a large batch of salty popcorn, levels of salt in the urine increase. E) As age increases, the amount of calcium in the bones tends to decrease
Answer: option D - After eating a large batch of salty popcorn, levels of salt in the urine increase
Explanation:
Homeostasis is the ability of a living organism to ADJUST its internal environment to maintain a stable equilibrium
FOR EXAMPLE: warm-blooded animals like humans allow blood vessels dilate during hot weather, and constrict during cold weather IN ORDER to maintain a constant body temperature.
Thus, after eating a large batch of salty popcorn, levels of salt in the urine increase due to the homeostatic mechanism of the ANTI-DIURETIC HORMONE stimulating reabsorbtion of water from urine, and excretion of excess salt.
