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Across
  1. 4. dioxide is a gas that is used by plants from the air to make their own food
  2. 6. web consists of all the food chains in a single ecosystem
  3. 7. is the part of the plant that takes in water
  4. 8. animals that hunt other animals for food
  5. 12. are animals that eat both meat and plants.
  6. 13. factors are non-living factors that affect an ecosystem.
  7. 17. is the process of breaking down glucose using oxygen.
  8. 19. are animals that feed on decaying meat or dead bodies
  9. 20. animals that feed on plants
  10. 22. is the place where an organism lives
  11. 23. organisms that can't make their own food
  12. 25. animals that break down dead animals or plants
  13. 26. animals that are hunted by other animals for food.
  14. 28. is the a source of energy needed by plants to make their own food
  15. 29. is populations of different species who live in the same place at the same time
Down
  1. 1. organisms rely on each other for energy.
  2. 2. is a form of sugar that plants use as food.
  3. 3. are organisms that can make their own food
  4. 5. process that plants use to make their own food
  5. 9. is the gas that is needed to break down glucose.
  6. 10. stages or steps in a food chain that show a transfer of energy from one organisms to another.
  7. 11. factors are living factors that affect an ecosystem
  8. 14. animals that feed on meat only
  9. 15. energy from the sun is converted to potential energy by a plant during the process of making its own food.
  10. 16. are animals that feed on insects only.
  11. 18. is a gas that is released by plants as a waste that we breathe.
  12. 21. a green pigment found in all plants used to absorb the sunlight.
  13. 24. all living and non-living things in an area.
  14. 27. of the same species in a given area