EVERYDAY SCIENCE

Detailed explanation-1: -Your kidneys remove wastes and extra fluid from your body. Your kidneys also remove acid that is produced by the cells of your body and maintain a healthy balance of water, salts, and minerals-such as sodium, calcium, phosphorus, and potassium-in your blood.

Detailed explanation-2: -Your kidneys filter your blood, separating toxins from nutrients. Vitamins, minerals, nutrients and proteins return to your bloodstream. Waste products and urine move through your ureters to your bladder.

Detailed explanation-3: -The kidneys remove waste products called urea from the blood through tiny filtering units called nephrons. There are about one million nephrons in each kidney. Each nephron consists of a ball formed of small blood capillaries, called a glomerulus, and a small tube called a renal tubule.

Detailed explanation-4: -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.