Across
- 1. xylem walls keep plants upright
- 4. covers the root of the tooth
- 5. a muscle or gland that response to a stimulus
- 9. a sticky film over the tooth
- 11. decrease the risk of blood clots
- 12. less reactive than glucose transported to the plant cells
- 13. mixture of food contents secreted into the duodenum
- 14. places where proteins are made
Down
- 2. a functional unit of nervous system which carries messages
- 3. organic sustances needed in tiny amounts for the body
- 5. the system that secretes hormones directly into the blood
- 6. a smaller branch of an artery
- 7. good in sports
- 8. a tube that carries urine from the bladder to the exterior
- 10. a plant hormone that promotes the growth of new shoots