Ecology

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Across
  1. 3. Anywhere on, in or above the planet where life is found
  2. 7. All cells, tissues, organs, and organ systems working together makes an organism
  3. 8. Group of organs working together
  4. 9. Species change over time
  5. 10. Basic unit of life
  6. 12. Made up of the same type of cells grouped together to do a job
  7. 13. Populations of different species living in a given area
Down
  1. 1. Biological community interacting with their physical environment
  2. 2. Number of one species in a given area
  3. 4. The study of the environment and the interaction of its various elements
  4. 5. Made up of the same type of cells grouped together to do a job
  5. 6. Maintaining stable internal environment
  6. 11. Naturally occurring habitat that includes all things biotic and abiotic features