Across
- 2. a part of the body or plant that helps an organism survive
- 4. a natural continuing action or series of actions
- 6. body organs animals use to see, smell, hear, taste, and touch or feel
- 10. to sense and receive
- 11. on the inside
- 14. a band-like tissue that connects muscles to bone
- 15. continuing to live
- 16. these carry information from the sensory receptors in the eyes, ears, mouth, nose, & skin to the brain
- 18. on the outside
- 19. the purpose of a structure for survival
Down
- 1. a group of structures that work together for a function
- 3. reaction to stimulus
- 5. these carry information from the brain to muscles and other body parts
- 7. any living thing
- 8. the opening in the middle of the colored part of the eye
- 9. the outer clear, round structure that covers the iris and the pupil
- 12. a cell located in the tissues of sensory organs throughout the body that detects stimuli and sends the information to the brain
- 13. happens when a light ray hits a surface and bounces off
- 17. the back part of the eye that contains the cells that respond to light