1. True or False: Malpighian body is a part of nephron.   True   False   2. Identify urethra in this diagram.   1   2   3   4   Hint Half-n-half Clue   3. Which of these is not an excretory organ: intestine, lungs, thyroid or kidneys?   Intestine   Lungs   Thyroid   Kidneys   Half-n-half Clue   4. Formation of urea occurs in   Pancreas   Kidneys   Liver   Small intestine   Half-n-half Clue   5. Tuft of capillaries inside the Malpighian body is known as   Collecting ducts   Renal artery   Glomerulus   Nephron   Half-n-half Clue   6. Main function of the _______ is to filter the wastes from the blood and excrete them in the form of urine.   Endocrine glands   Urinary Bladder   Lungs   Kidneys   Half-n-half Clue   7. True or false: Kidneys contain 10-12 million nephrons.   True   False