Across
- 3. Another name for a white blood cell
- 5. Protects the eye from damage and allows light to pass to the retina
- 7. Another name for a red blood cell
- 9. Carry deoxygenated blood to the heart from the body
Down
- 1. When an animal prepares for flight or fight producing adrenaline
- 2. When the animal has a decreased heart rate and respiratory rate
- 4. The coloured part of the eye, controlling the amount of light entering the eye
- 6. Carry oxygenated blood away from the heart and to the body
- 8. Part of the ear used for collecting and funnelling sound waves into the middle ear