Across
- 3. respiration provides energy needed for cells
- 5. ____ are the building blocks of life
- 7. where cellular respiration takes place
- 9. stores the cells genetic info
Down
- 1. a _________ is a single cell organism
- 2. a representation of a system
- 4. ______ can’t be created or destroyed
- 6. generation the theory that living things come from non living things
- 8. membrane they separate the cell from the outside environment