Across
- 4. Mechanical chewing of food
- 5. Rhythmic contraction and relaxation of muscles
- 6. Tine openings on leaves for exchange of gasses
- 10. Movement of materials inside organism
- 11. Basic unit of life
- 12. Process of cell engulfment
- 13. Removal of waste products
- 14. Process of taking in oxygen and releasing carbon dioxide
- 15. Tiny air sacs where oxygen is absorbed
- 16. Green Pigment in plants
Down
- 1. Breakdown of food in body
- 2. Essential life process for energy
- 3. Natural home of an organism
- 7. Transport of food in plants
- 8. Oxygen carrying pigment in blood
- 9. Movement from high to low concentration