Across
- 3. Needs only one parent
- 6. Plants response to gravity
- 8. energy from intake and digestion of organic substances
- 10. An insecticide that protects against disease
- 11. Plants response to touch
- 12. One animal benefits and the other isn't harmed
Down
- 1. Needs to find a mate
- 2. decrease in response due to noises repeated over time
- 4. One animal benefits and the other is harmed
- 5. Plants response to light
- 7. Two animals benefit from each other
- 9. energy from light and chemical to synthesizes food