Across
- 1. protects against disease; stores and generates white blood cells
- 5. breaks down and absorbs nutrients, salts, and water
- 6. produces and transports reproductive cells
- 7. a group of tissues that carry out a specialized function
- 10. brings in oxygen for cells, expels carbon dioxide and water vapor
- 13. produces hormones that act on target tissues in other organs to influence growth
- 15. filters blood and eliminates waste products
Down
- 2. produces voluntary and involuntary movements
- 3. transports oxygen, nutrients, hormones, and wastes
- 4. regulates the body’s response to changes in the internal and external environment
- 8. is an organ of soft nervous tissue contained in the skull of vertebrates
- 9. pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn,
- 11. supports and protects vital organs; allows movement; stores minerals
- 12. protects against infection, UV radiation; regulates body temperature
- 14. a hollow muscular organ that pumps blood through the circulatory system