Across
- 3. made up of blood vessels that carry blood to and from the heart
- 6. network of organs and tissues that help you to breathe
- 8. composed of specialized cells called muscle fibers
- 10. a complex network of organs and glands
- 11. a system in the body that helps to create new life through all organisms whether that be sexually or asexually
- 12. an organ that produces and releases substances to perform an action in the body
- 13. involves the secretions of enzymes throughout your digestive tract
- 16. keeps your body structured and protects your organs
- 17. transports blood from various different regions of your body to your heart
- 18. steady internal, physical, and chemical conditions maintained by living systems.
- 19. your body's chemical messengers
- 20. blood vessels that transfer nutrients and oxygen to your blood vessels
Down
- 1. the system in the body that helps an organisms to produce waste
- 2. consist of a singular muscular cell
- 4. your body's command center
- 5. a set of organs that help you to breakdown and digest food
- 7. the process of physically breaking down food into smaller particles
- 9. internal, physical, and chemical conditions maintained by living systems
- 14. are blood vessels that deliver blood from the heart to the tissues of your body
- 15. composed of cells that have the special ability to shorten or contract