Across
- 2. produces growth hormone
- 6. receptor absent in brain
- 7. an involuntary action
- 9. caused by iodine deficiency
- 11. response towards light
- 15. metabolism of calcium and phosphorus
- 16. response to touch in touch-me-not plant
- 18. acid inhibits plant growth
- 19. fruit development
- 20. controls balance and posture
Down
- 1. ripening of fruit
- 2. sound receptor
- 3. master of master gland
- 4. hormone associated with gonads
- 5. brain is protected by
- 8. birth hormone
- 10. dual gland
- 12. reduces blood flow to digestive system
- 13. maintaining biological clock of body
- 14. junction between two neurons
- 17. involuntary actions are controlled by