Energy and Nutrients

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Across
  1. 5. An element passed between organisms and the air through photosynthesis and respiration
  2. 6. Anything that has mass and takes up space
  3. 7. Water evaporating from plant leaves, moving from plants to the atmosphere
  4. 8. A substance used to replace nutrients in soil; it can lead to algae blooms
  5. 11. A cycle moving between living things, the earth, and the atmosphere
  6. 12. A process that pulls carbon from the air and puts it in organisms’ bodies
  7. 16. The gas that makes up most of the air, but plants can’t get it from the air
  8. 17. A process that pulls carbon or nitrogen from the air and puts it into organisms
  9. 18. Plant-eaters, also known as primary consumers
  10. 19. The Law of ________ of Energy
  11. 22. A consumer that is not prey for any other organism
  12. 24. A process that moves carbon from fuels such as oil, into the atmosphere
  13. 25. This is the part of a plant that absorbs water and nitrogen
Down
  1. 1. Another word for autotroph, contrasted with consumer
  2. 2. An organism that makes its own food
  3. 3. Water carrying excess fertilizer downstream into lakes and rivers
  4. 4. A process that moves carbon from dead organisms into the atmosphere
  5. 5. The units used to measure energy in food
  6. 9. At each stage of a food chain, _____ percent of energy is lost as heat
  7. 10. Organisms that aren’t part of food chains, but eat dead things from every level
  8. 13. Organisms that have to eat others for food; another word for consumer
  9. 14. Organisms that can eat plant matter or meat
  10. 15. Meat-eaters, also known as secondary consumers
  11. 20. This is the part of a plant that absorbs carbon
  12. 21. One ‘stage’ in a food chain. Or a level on an energy pyramid
  13. 23. A substance needed for life, besides energy