Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

during dehydration the concentration of urine is increased and the volume of it is decreased. Because kidneys want to retain and reabsorb as much water as possible back into the blood.

Excessive water intake causes less concentrated urine with increased volume. The kidneys don’t reabsorb that much water because there is enough of it in the plasma.

-using seeds from the same source

-using the same kind of soil for both groups

-giving the control and experimental groups the same volume of water

-keeping the light the same for the experimental and control groups

-measuring plant height the same way and at the same time for both groups

Explanation:

Using seeds from the same source makes sure that the seeds are of the same species, and using the same soil prevents one group from growing faster or slower because of increased initial nutrition. The same amount of water was also used so that the plants wouldn't die or grow more quickly solely because of water. And, finally, accurate measurements were taken to minimize the chance of incorrect information.