Across
- 2. An _____ image is formed on the retina.
- 4. _____ work best in bright light. They are responsible for colour vision.
- 6. The brain _____ the message as an upright image of the object.
- 8. Our eye is a fantastic organ, but there are still some _____ to what we can see.
- 10. _____ may be caused by the lens being too thick or the eyeball being too long, or both.
Down
- 1. Environment change that cause living things to respond is called _____.
- 3. When sensory cells detect a stimulus, message are sent along the _____ to the brain, a sense is produced.
- 5. Long sight can be corrected by wearing _____.
- 7. Humans have specialized _____ in different sense organ to detect stimuli.
- 9. The cornea and the lens bend the light and _____ it onto the retina.