Across
- 5. what nutrients are potato rich in
- 7. brain of cells
- 10. A process that oxygen is used to break down food
- 12. addictive drug found in cigarettes
- 14. a dilute solution of calcium hydroxide
- 16. a organism that spread easily
- 18. What is citrus fruit rich in
- 20. very dry area with little water
- 21. A kind of carbohydrate made by plants using lots of sugar
Down
- 1. a mineral needed for strong bones
- 2. what are plants known as in the food chain
- 3. habitat found in a tree
- 4. a toxin use to kill animals and fungal pests
- 6. accumulation of biomass along a food chain
- 8. a way to measure obesity
- 9. a nutrition that repair tissues
- 11. environment that support life
- 13. tropical forest in the sea
- 15. waste products of anerobic respiration
- 17. something butter is rich in
- 19. black compound found in tobacco smoke