A human who has no access to fresh water and can only drink salty seawater instead
A)will thrive under such conditions,as long as he has lived by the ocean most of his life.
B)will excrete more water molecules than are taken in because of the high load of ion ingestion.
C)will develop structural changes in the kidneys to accommodate the salt overload.
D)will find that drinking saltwater satiates his thirst.
E)will excrete less water molecules than are taken in because of the high load of ion ingestion.

Question

Quizplus · Accepted Answer

Drinking saltwater will lead to an increase in the body's overall salt load, which can lead to dehydration as the body excretes more water molecules to balance out the high level of salt. The kidneys will attempt to remove excess ions, but there will be a limit to how much salt can be excreted before dehydration sets in. Therefore, the human will excrete more water molecules than are taken in, leading to dehydration.

A Human Who Has No Access to Fresh Water and Can