Across
- 3. air sacs in lungs for exchange of gases
- 6. in leaf for gas exchange
- 9. that speed up reactions
- 10. of releasing energy from food
- 11. internal balance in the body
- 13. in food and using it for energy and growth
- 16. in position by the body or its part
- 18. tissue that transports food in plants
- 19. of absorbed food into body tissues
Down
- 1. in mouth that helps digest starch
- 2. excretory organ in humans
- 3. of substances in the body
- 4. that prepares its own food
- 5. down of food into simpler forms
- 7. of water from aerial parts of plants
- 8. of food in plants through phloem
- 12. for gaseous exchange in humans
- 14. of nitrogenous waste
- 15. unicellular organism with pseudopodia
- 17. make their own food by this process