Across
- 3. used to make chlorophyll in chloroplasts
- 7. build up of chemicals in organisms body in its life
- 9. needed to make amino acids, which are used in proteins
- 11. solution for weeds
- 13. advantage of using biological over chemical control
- 14. community of living organisms in a particular area
- 15. total mass of organisms
- 17. natural environment where a plant or animal lives and grows
- 18. a glass building where plants are grown
- 19. plants grown for food
- 20. a factor that limits rate of photosynthesis, measured in Celsius
Down
- 1. increase in concentration of chemicals going up food chain
- 2. a factor that limits rate of photosynthesis, comes from the Sun
- 4. needed to make nucleotides, which are used to make DNA
- 5. the percent of biomass passed on to the next trophic level
- 6. the variety of all living things and their interactions
- 8. element found in one of the factors that limit rate of photosynthesis
- 10. substance used to prevent/control pests
- 12. whole number of organisms in a county or region
- 16. an organism that creates its own food.