Across
- 1. the adrenaline releases glucose from the?
- 4. Most important stimulus for plants:light and?
- 6. the part of the eye that has receptor cells
- 8. made in endocrine glands
- 9. a black layer behind the retina.
- 10. The growth response of plants
- 12. ___ cells are sensitive to dim light
- 13. Adrenaline make hormones called?
- 16. The organisms that responds to the senses
- 18. reflex actions are ___ actions.
- 20. Adrenaline glands located above the __.
- 21. Myelin carries ____ faster
Down
- 2. an __ is formed in the retina
- 3. Changes in our environment
- 5. What senses the changes in our environment
- 7. what glands have capillaries in them?
- 11. The gap between neurones
- 14. cells in our body that carry messages
- 15. Plant's effectors are located __ the shoot.
- 17. Another word for plant hormones.
- 19. Plant's receptors are at the __ of the shoot.