Across
- 1. Enables movement, maintains
- 5. Protects against foreign substances.
- 8. Secretes hormones into the
- 12. Enables the transport of nutrients,
- 13. Senses external environment and
- 14. Produces gametes and supports
- 15. Enables gas exchange with the
- 17. of the body.
- 18. and stores fat.
- 19. water balance.
Down
- 2. Filters and eliminates liquid wastes;
- 3. with and activates other
- 4. and wastes to and from cells.
- 6. and can store energy.
- 7. Provides mechanical support; stores
- 9. and produces red blood cells.
- 10. Allows ingestion and breaks down food so that nutrients can be absorbed.
- 11. for regulation of cellular
- 16. Protects the body's internal