AP BIOLOGY

Detailed explanation-1: -Skin is known to be the largest organ in the human body. It contains sweat glands and the sebaceous glands. The sweat glands produce sweat which contains sodium chloride, amino acids, water, and glucose. The sebaceous glands excrete excess fat such as sterol and wax.

Detailed explanation-2: -The skin plays a role in excretion through the production of sweat by sweat glands. Sweating eliminates excess water and salts, as well as a small amount of urea, a byproduct of protein catabolism.

Detailed explanation-3: -Water and salts are removed from the body through sweat. Whereas, urea is eliminated through kidney and carbon dioxide is eliminated through the lungs.

Detailed explanation-4: -Skin: Expels sweat that contains water, urea, and salts through the sweat glands.

Detailed explanation-5: -Although the kidneys are the main organs of excretion, several other organs also excrete waste s. They include the large intestine, liver, skin, and lungs. All of these organs of excretion, along with the kidneys, make up the excretory system.