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