Michael is 26 years old. He becomes dehydrated after a long run if he has not drunk enough. His infant son Sean, however, becomes dehydrated fairly frequently. This difference in susceptibility to dehydration is because
A)adults drink more liquid.
B)infants grow rapidly.
C)infant kidneys are less able to conserve water.
D)the infant thirst mechanism is underdeveloped.

Question

Quizplus · Accepted Answer

Infant kidneys are less able to conserve water, making them more susceptible to dehydration. Adult kidneys are better developed and can conserve water more efficiently. Other factors such as fluid intake and growth rate may play a role, but the underdeveloped kidney function in infants is the main reason for their increased susceptibility to dehydration.

Michael Is 26 Years Old