Across
- 3. basic units of life, humans have 200+ specific types
- 4. holds the brain
- 6. groups of tissues working together, humans have 78
- 7. holds the reproductive organs, bladder, etc.
- 8. holds the digestive organs, kidneys, etc.
- 11. groups of organs working together, humans have 11
- 12. groups of atoms bonded together
Down
- 1. holds the heart and lungs
- 2. holds the spinal cord
- 5. smallest unit of body organization, but most numerous
- 9. groups of cells working together, 4 main types; muscle, nervous, epithelial, connective
- 10. all of the levels work together to create the whole being