Across
- 4. process by which leaves lose water through their leaves
- 5. part of the blood
- 8. shapes like a bean
- 10. breaking down of food into smaller pieces
- 12. seed to seedling
- 13. digestion starts here
- 16. a type of asexual reproduction
- 17. an irreversible process
- 18. how plants make their own food
- 20. support the plant
- 23. harmful substances in the air
- 24. air we breathe in
- 25. attract insects
- 26. complete life cycle of an insect
- 27. a mixture of smoke and fog
Down
- 1. removal of bodily waste mechanically
- 2. effect of air pollution
- 3. transfer of pollen grains from anther to stigma
- 6. pumps blood around the body
- 7. has three layers
- 9. removal of bodily waste chemically
- 11. long tube that push food into the stomach
- 14. third stage in human development
- 15. a blood vessel
- 19. the seed coat
- 21. fourth stage in human development
- 22. first stage in human development