Biology Crosswords

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Across
  1. 6. The regulation of the internal environment, for example temperature.
  2. 7. The effect of one thing on another.
  3. 10. Caused or produced by humans.
  4. 12. Relating to land.
  5. 13. This system includes the heat.
Down
  1. 1. A variable used in scientific experiments.
  2. 2. The section of a scientific report that includes the data.
  3. 3. The process where green plants use sunlight to create nutrients from carbon dioxide and water.
  4. 4. All the living organisms that live in an area and the interactions of their environment.
  5. 5. All populations of different species that live in the same place at the same time.
  6. 8. A measure of cold or warmth.
  7. 9. The amount of species of plants and animals in the environment.
  8. 11. This system includes the lungs