Science

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Across
  1. 2. The passing of matter and energy from producers through consumers
  2. 4. the movement of oxygen from the atmosphere into living organisms and back to the atmosphere
  3. 6. is a relationship in which two organisms interact frequently over a long period of time, often living together
  4. 9. is a relationship between two organisms in which; neither affects the other
  5. 10. is a model of how energy flows through a food chain
Down
  1. 1. is the process by which a plant uses energy from the sun to turn carbon dioxide and water into the sugar glucose
  2. 3. is a relationship between two organisms in which one eats the other
  3. 5. the movement of carbon from the atmosphere into a living organism, then into the earth, and finally back into the atmosphere
  4. 7. all the interrelated food chains that are possible in an ecosystem
  5. 8. the continuous movement of water from the earth to the atmosphere and back to earth