Across
- 1. (n) a liquid in or around the body, like blood or saliva
- 5. (n) cells that carry signals between the brain and the rest of the body
- 6. (n) a group of organs and parts that work together to perform a function
- 9. (v) to keep something safe from harm or damage
- 10. (n) the organ that controls thought, movement, and the body's responses
- 12. (n) the period during which a baby develops inside the womb
- 13. (n) body tissue that contracts and relaxes to produce movement
- 15. (n) a substance in food that the body needs to grow and function
- 16. (v) to break down food so the body can use it
- 19. (adj) having all parts working in proper proportion and harmony
Down
- 2. (v) to grow or change gradually over time
- 3. (v) to take air into the lungs and release it
- 4. (n) an unborn baby developing inside the womb
- 6. (n) a message sent through the nervous system to trigger a response
- 7. (v) to react to a signal, event, or change in the body
- 8. (n) the column of bones running down the back that protects the spinal cord
- 11. (v) to take in and process something, like nutrients from food
- 14. (v) to cause a reaction or activity in the body
- 17. (n) a repeating series of events or processes in the body
- 18. (n) a body part with a specific function that supports life