Unit 3: Energy and Matter Flow

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Across
  1. 4. pathways of energy in an ecosystem
  2. 6. the study of relationships between living and non living things
  3. 7. generally second trophic level: primary consumers
  4. 9. total rate of photosynthesis in a given area
  5. 11. use photosynthesis to convert solar energy into usable energy
  6. 12. the rate at which producers make useful chemical energy
  7. 13. species that hold the energy flow of the ecosystem in balance
  8. 16. _____ of thermodynamics states that energy is neither created or destroyed, only transformed
  9. 17. _____ of thermodynamics states that ten percent of energy from each energy transfer is usable, the rest is lost as heat
  10. 18. generally third trophic level: secondary consumers
Down
  1. 1. stored in rocks, weathering releases it into soil and water, plants take up, animals eat plants, animals produce waste, animals die and decomposers break down nutrients
  2. 2. organisms that create their own energy
  3. 3. organisms that must consume other organisms to gain energy
  4. 5. consists of evaporation, condensation, precipitation, and accumulation
  5. 8. gas taken by bacteria, ammonification, assimilation, dentrification
  6. 10. generally fourth trophic level: tertiary consumers
  7. 14. sum of primary and secondary productivity minus what decomposers use
  8. 15. plants absorb from atmosphere, animals eat plants, animals breakdown carbohydrates for energy, animals produce waste, animals die and decomposers break down nutrients