Physical Properties of Matter

12345678910111213141516171819202122232425
Across
  1. 2. a food _____ shows one path of energy flow through an ecosystem
  2. 6. a cycle is closely linked to climate change
  3. 7. needs to be fixed before most living things can use it
  4. 9. relationship where organism vie for resources
  5. 11. produced along with sugar by photosynthesis
  6. 12. required along with CO2 for photosynthesis
  7. 15. zone around Earth where life can exist
  8. 16. describes factors that are living things
  9. 18. all living things in an ecosystem
  10. 20. relationship where both species benefit
  11. 22. green plants for example
  12. 23. layer of gases surrounding Earth
  13. 24. Earth's solid outer layer
  14. 25. % of energy that typically gets passed along to the next trophic level
Down
  1. 1. original source of energy in ecosystems
  2. 2. _____ capacity is the maximum sustainable population size
  3. 3. describes factors that are non-living
  4. 4. all of Earth's water
  5. 5. a cycle including evaporation and precipitation
  6. 8. James Lovelock's famous hypothesis
  7. 10. tape worms are an example of this
  8. 13. mass of living organisms in a given area
  9. 14. something that obtains energy by eating other organisms
  10. 17. all the organisms of one species in an ecosystem
  11. 19. an organism's roll in an ecosystem
  12. 21. _____ level describes an organism's position along a food chain