Across
- 4. protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception
- 7. carry oxygen to and waste materials from the cells in the body
- 8. exchange oxygen and CO2
- 9. smallest living organ
Down
- 1. pumping blood or processing and utilizing nutrients
- 2. supports, protects, and gives structure to other tissues and organs in the body
- 3. coordinating and controlling many body activities
- 5. pumping blood and supporting movement to lifting heavy weights or giving birth
- 6. store genetic information