Across
- 3. Two lower chambers of the heart
- 7. Urinary opening at the end of a muscular tube
- 10. Extremely thin tubes
- 11. Binds with oxygen and transports it to all the parts of the body
- 12. Group of cells that perform specialized function in an organism
Down
- 1. Vessels which carry carbon dioxide-rich blood from all partsof the body back to the heart
- 2. The two upper chambers of the heart
- 4. Process of removal of wastes produced in the cells of the living organisms
- 5. Carry oxygen-rich blood from the heart to all parts of the body
- 6. Vascular tissue that helps in transportation of food to all parts of the plant
- 8. Fluid which flows in blood vessels
- 9. Rate The number of beats per minute