1. Which is not true regarding kidneys? A. They do not have any capsule. B. They are bean shaped and reddish brown in color. C. Each kidney is divided into 2 parts - cortex and medulla. D. They are the main excretory organs.   A   B   C   D   Hint Half-n-half Clue   2. Tuft of capillaries inside the Malpighian body is known as   Renal artery   Collecting ducts   Glomerulus   Nephron   Half-n-half Clue   3. Which of these is not a function of kidneys? A. Maintenance of acid base balance. B. Excretion of nitrogenous waste products. C. Temperature regulation. D. Maintenance of water balance.   A   B   C   D   Half-n-half Clue   4. Identify urethra in this diagram.   1   2   3   4   Half-n-half Clue   5. Which of these is not true -- A, B, C or D? A. Kidney excretes urea. B. A small fraction of CO2 is removed through the skin. C. Small amount of salt is excreted through skin. D. Feces is excreted through the anus.   A   B   C   D   Half-n-half Clue   6. True or false: Kidneys contain 10-12 million nephrons.   True   False   7. Main function of the _______ is to filter the wastes from the blood and excrete them in the form of urine.   Lungs   Urinary Bladder   Kidneys   Endocrine glands   Half-n-half Clue