AP BIOLOGY

Detailed explanation-1: -Kidneys are the main organs of excretion in humans. Apart from kidneys, other organs like lungs, liver, skin and sebaceous glands also help in excretion.

Detailed explanation-2: -The kidneys help remove metabolic waste like urea, as well as maintain a balance of salt and water in the blood. These actions help to keep our body in balance, or at homeostasis.

Detailed explanation-3: -The main excretory organs include kidney, ureter, urinary bladder and urethra. Kidneys filter the blood and urine is the filtrate obtained. Urine passes to the urinary bladder via ureter and is expelled out of the body.

Detailed explanation-4: -Excretion is the process of removing wastes and excess water from the body. It is an essential process in all living things and a major way the human body maintains homeostasis . Organs of excretion include the skin, liver, large intestine, lungs, and kidneys.