Across
- 6. This system enables movement and helps maintain body temperature.
- 9. The energy-producing organelle found in muscle cells.
- 10. A plant’s underground structure that absorbs water and nutrients.
- 12. and socket, A type of joint that allows movement in nearly all directions.
- 14. A type of joint that allows rotational movement, like in the neck.
- 15. A mineral stored in bones and needed for strong skeletal structure.
- 16. A structure that provides internal support for plants.
- 18. A rigid outer covering that protects some animals' bodies.
- 19. muscle, A type of muscle you can consciously control.
Down
- 1. A type of muscle that moves food through the digestive system.
- 2. A type of joint that allows bones to move back and forth.
- 3. This type of skeleton relies on fluid for support.
- 4. These attach muscles to bones.
- 5. This type of muscle is found only in the heart.
- 7. A fluid-filled internal cavity that helps some organisms move.
- 8. The tissue that connects bones to other bones.
- 11. A system that consists of bones, joints, and ligaments.
- 13. A flexible structure where two or more bones meet.
- 16. A system that supports the body and protects organs.
- 17. This structure protects the brain.
