Biology

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Across
  1. 4. a scientific investigation or procedure designed to test a hypothesis
  2. 6. the self-regulating process of organisms
  3. 8. an explanation for an observation
Down
  1. 1. the process by which living organisms produce offspring
  2. 2. raw, unorganized information collected by biologists
  3. 3. the study of living organisms
  4. 5. the change in an organism that occurs as a result of stimulus
  5. 7. the evolutionary process by which a species changes over generations
  6. 9. a detectable change in the internal or external environment of an organism