Waste materials dissolved in water are collected by the kidneys and become concentrated as urine. True False

True

Explanation:

The formation of urine in the human body is done by the excretory system and the part of the excretory system that involves the formation of urine is known as the urinary system.

The nephron present in the kidney is the functional unit which filters the blood and excretes out the waste material.

The structure of nephron reabsorbs the important solutes like sodium ions and water from the blood and excrete out the waste product as the urine. The collecting tubule then again reabsorbs the water and the important solutes which are considered a part of the urinary system and release waste material into the urine.

Since the waste material is released into the kidney therefore true is the correct answer.