Ecosystem of the Physical Environment

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Across
  1. 5. What is the study of interactions among organisms and their environment?
  2. 6. What is a series of organisms each dependent on the next as a source of food?
  3. 7. What is a plant that uses energy from the sun to make its own food?
  4. 12. What is the term for organisms that cannot produce their own food and rely on consuming other organisms for energy?
  5. 14. What is the natural home or environment of an organism?
  6. 16. What is a large community of plants and animals that occupies a distinct region?
  7. 17. What is the zone of the Earth where life exists?
  8. 19. What is the process by which water circulates between the earth's oceans, atmosphere, and land?
  9. 20. What is a higher ecological category next to population?
Down
  1. 1. What is the term for all the water held on Earth, including water in the air, icebergs, glaciers, groundwater, lakes, rivers,
  2. 2. What is the physical Earth consisting of rocks, magma and soil.
  3. 3. What is the layer of gases surrounding Earth?
  4. 4. What is a group of individuals of the same species, inhabiting the same area, and functioning as a unit of biotic community.
  5. 8. What is the variety of life in the world or in a particular habitat or ecosystem?
  6. 9. What is the process of breaking down organic material into simpler substances?
  7. 10. What is the term for the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles?
  8. 11. What is the process by which plants make their food using sunlight?
  9. 13. What parts of nature where living organisms interact amongst themselves and with their physical environment.
  10. 15. What is a non-living component of the ecosystem such as rocks or soil?
  11. 18. What is the similar type have the potential for interbreeding, and produce fertile offspring, which are called species.