How do humans regulate water levels in the body?​

Body water homeostasis is regulated mainly through ingested fluids, which, in turn, depends on thirst. Thirst is the basic instinct or urge that drives an organism to ingest water. Thirst is a sensation created by the hypothalamus, the thirst center of the human body.

Explanation:

Body water homeostasis is regulated mainly through ingested fluids, which, in turn, depends on thirst. Thirst is a sensation created by the hypothalamus, the thirst center of the human body.

Explanation:

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.