1. It pumps blood to various parts of the body.   Hint First letter clue   2. Most of the ingested water is absorbed here.   First letter clue   3. Absorption of food occurs here.   First letter clue   4. Undigested food is excreted out of the body through this opening.   First letter clue   5. Food descends from mouth to stomach through this muscular tube.   First letter clue   6. Churning of food occurs here.   First letter clue   7. It is a muscular tube containing semicircular rings of cartilages.   First letter clue