Question

multiple choice question the organs responsible for the removal of the majority of wastes from the body are the ______.

○ skin

○ lungs

○ blood

○ kidneys

Explanation:

• The skin removes some wastes (like sweat with salts and small amounts of urea) but not the majority.
• The lungs remove carbon dioxide (a waste gas) but not the main metabolic wastes like urea, excess water, and salts in large quantities.
• Blood is a transport medium, not an excretory organ for removing the majority of wastes.
• The kidneys are the primary excretory organs. They filter the blood, remove metabolic wastes (like urea), excess water, and salts, and produce urine, which carries away the majority of the body's wastes.

Answer:

D. kidneys