Characters of Life and Levels of Organization Crossword Puzzle

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Across
  1. 1. Anywhere on, in or above the planet where life is found
  2. 5. Cells, tissues, organs and organ systems working together to make an organism
  3. 9. Maintaining a stable internal environment
  4. 11. Species change over time
  5. 13. natural occurring habitat including biotic and abiotic features
Down
  1. 2. A group of organs working together
  2. 3. The number of one species in a given area
  3. 4. Interactions between animals
  4. 6. Biological community interacting with their physical environment
  5. 7. Different tissues grouped together
  6. 8. The smallest units of life
  7. 10. The same types of cells grouped together to do a job
  8. 12. Populations of different species living in a given area