Biology

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Across
  1. 5. An organism's observed physical characteristic
  2. 8. The "brain" of the cell
  3. 9. Place where an organism lives
  4. 11. Any organism with a nucleus in its cells
  5. 13. An educated guess; a possible explanation for an observation.
  6. 14. the study of life
Down
  1. 1. Long-term, specific interactions between two different species.
  2. 2. An interaction in which one organism kills another for food.
  3. 3. The basic unit of life.
  4. 4. An organism that can make its own food.
  5. 5. Any disease-producing agent, such as a virus, bacterium, or fungus.
  6. 6. Double helix made of sequences of nucleotides.
  7. 7. A living thing that has (or can develop) the ability to act or function independently
  8. 10. the passing of genetic traits from parent to offspring
  9. 12. Study of the general principles of scientific classification.