Energy in Ecosystems

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Across
  1. 5. Only some energy is passed along the food web because most is lost as ________.
  2. 7. Another word for organisms producing their own food using sunlight
  3. 8. This interconnected system shows the flow of energy in an ecosystem, with arrows pointing from one organism to another.
  4. 9. When organisms use energy, they lose mass in the form of __________.
  5. 16. The tundra, desert, and rainforest are all examples of these.
  6. 17. An organism that ingests dead matter or waste for energy is called a _______________.
  7. 18. Primary productivity is the rate at which producers produce energy from _______________.
  8. 19. Organisms capable of producing their own food using the sunlight.
  9. 20. Only ____ percent of energy is passed on from one organism to another throughout the trophic levels.
  10. 22. Living factors found within an ecosystem.
  11. 26. These organisms, like mushrooms, cause decay by breaking down materials into raw elements.
  12. 27. Consumer that obtains energy from herbivores.
Down
  1. 1. The place where a population lives.
  2. 2. Community + abiotic factors.
  3. 3. A sequence of organisms, each dependent on the next as a source of food, creating a linear representation of energy transfer.
  4. 4. Collection of individuals from the same pecies that live together in the same place at the same time.
  5. 6. Physical factors that can affect the ecosystem (i.e., weather and climate).
  6. 10. The variety of organisms living within an ecosystem, measured as the number of different species.
  7. 11. The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
  8. 12. The study of interactions among living things with each other and the environment.
  9. 13. What flows through ecosystems.
  10. 14. An assigned level found in a food chain is called a _________ level.
  11. 15. Dry weight of matter found within an ecosystem.
  12. 21. The portion of the planet where life exists.
  13. 23. An organism that consumes both plants and animals for nourishment.
  14. 24. Many species living together in a habitat.
  15. 25. Organisms that rely on other organisms in order to obtain their energy.