Q1. The total functions of the excretory system are to remove ______ like ______, maintain the ______ of the blood, maintain the balance of water and ______ in the blood and regulate the blood pressure also.
Q2. The ______ brings blood to the kidney. The ______ takes the urine from the kidney to bladder. The ______ brings the urine from the bladder to external of the body. There are millions of ______ in each kidney where the functioning of the kidney occurs. Each comprise a tiny ball of capillaries termed as a ______.