Question

from the following which is an excretory organ in human beings? a) skin b) lungs c) Kidneys d) all of this

Answer 1

DEAR FRIEND,

Your answer is c)Kidneys

Because water is filtered out by kidneys and excreted through anus in the form of urine.

Answer 2

Excretory organs perform the function of removing wastes from the body

• Skin releases some form of urea as sweat
• Lungs expel carbon dioxide which is not useful for the body
• Kidneys perform the function of filtering urine which contains most of the nitrogenous wastes such as urea, uric acid, salts etc

Hence all of these act as excretory organs