AP BIOLOGY

Detailed explanation-1: -Humans excrete salts through kidneys and skin. Sweat glands are used to regulate temperature and remove waste by secreting water, sodium salts, and nitrogenous waste (such as urea) onto the skin surface. Q.

Detailed explanation-2: -Final answer: The skin helps in the excretion of water and salts.

Detailed explanation-3: -The kidneys are the part of our excretory system. It plays an important role by filtering blood and removing urea, excess salt and water from the body as urine.

Detailed explanation-4: -Lungs eliminate these unwanted, waste products from the body, through expiration (exhaling air out from the body). 3: Role of skin-In mammals, the skin does the excretion using the sweat glands, or oil glands, or sudoriferous / sebaceous glands present in them.

Detailed explanation-5: -Excretion: the skin is a site through which we can excrete urea and other wastes via the sweat (the skin is not as important as the kidneys in terms of excretion) The skin is an important part of the sensory system.