Biology Unit 2

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Across
  1. 1. Area on Earth that contains rock and soil
  2. 3. Containing all of the water on Earth
  3. 8. An organism that cannot make its own food
  4. 9. Area on Earth that contains all living things
  5. 12. Most abundant gas in the atmosphere
  6. 13. Element that is in all living things
  7. 15. An organism that makes its own food
  8. 17. Organism that breaks down waste and dead organisms
  9. 19. Process that does not require oxygen
  10. 20. A molecule that is involved in transferring and providing cells with energy
Down
  1. 2. Conversion of light energy from the sun into chemical energy
  2. 4. The chemical element of atomic number 15, a poisonous, combustible nonmetal
  3. 5. The breakdown of glucose by enzymes, releasing energy and pyruvic acid
  4. 6. End substances after a biological process has occurred
  5. 7. Area on Earth that contains air
  6. 10. Process by which cells release energy in the absence of oxygen
  7. 11. Powerhouse of the cell, organelle that is the site of ATP production
  8. 14. Process that requires oxygen
  9. 16. Main energy source that the cell uses
  10. 18. Anything that has mass and takes up space