Across
- 4. channels food to the stomach
- 6. the throat region
- 8. the period of children becoming capable of reproduction
- 9. used by the immune system to attack invaders
- 12. the male reproductive system produces what
- 14. adaptive immunity can take ____ to develop
- 15. type of white blood cell
- 16. breaking down food into molecules small enough to absorb
- 18. the immune system fights off what
- 19. what has two types of active immunity?
Down
- 1. the female reproductive system produces what
- 2. the lymphatic system collects
- 3. the uptake of nutrients by body cells
- 4. the passage of undigested material out of the digestive compartment
- 5. the immune system relies on
- 7. further absorbs water from food
- 10. absorbs nutrients and water from food
- 11. the act of eating
- 13. produce female hormones
- 17. where the food enters