Biology Quiz Crossword

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Across
  1. 5. Plants rely on this from the sun to create chemical energy
  2. 8. Plants and animals are able to pull water from the soil because of this
  3. 9. The largest biotic component
  4. 12. When plants react to light(not negativeley or posotively)
Down
  1. 1. Legume plants have this that can fix nitrogen
  2. 2. When organisms get used to certain things or people
  3. 3. When a country's growth rates are about the same in every group
  4. 4. A growth chart makes an s hape when it hits this
  5. 6. It's concentration increases as it moves up the food chain
  6. 7. What disrupts the normal/natural carbon cycle
  7. 10. With higher levels of CO2 this is lowered in ocean water
  8. 11. When an organism leaves a population