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