ecology

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Across
  1. 6. organisms that make their own food
  2. 8. an organism that feeds on primary consumers
  3. 9. the study of the interaction between organisms and their environment
  4. 10. a graphical representation of the energy found within the trophic levels of an ecosystem.
Down
  1. 1. describes how carbon moves between the atmosphere, soils, living creatures, the ocean, and human sources.
  2. 2. an organism that feeds on primary producers
  3. 3. the movement of nitrogen within and between the atmosphere, biosphere, hydrosphere and geosphere.
  4. 4. the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
  5. 5. the variety of life in the world or in a particular habitat or ecosystem.
  6. 7. animals at the highest level on the food chain that consume other animals to obtain nutrition from them