Across
- 5. the measure of how something acid or alkaline is.
- 7. a group of organs that work together to perform a function
- 8. a word that refers to a non-living thing
- 9. a group of cells that performs a function
- 11. attraction between water molecules
- 12. organelle where photosynthesis occurs
- 13. tissues that work together to perform a specific function
Down
- 1. an organelle that controls the cell activities and stores DNA
- 2. group of the same species that are living in a certain area
- 3. attraction between other molecules
- 4. a word that refers to a living being
- 6. a part within a cell that has a specific function
- 10. refers to a single cell organism