Across
- 4. the smallest unit that can live on its own
- 6. respiration releases energy into cells
- 8. acids building blocks
- 11. argument a claim supported by evidence
- 12. a collection of tissues
- 13. a type of energy storage molecule
- 15. organisms get from the air or water around them
- 16. use of molecules for energy
- 17. set of interacting parts
Down
- 1. A type of cell that receives and sends messages
- 2. a category of large molecules
- 3. can use to release energy
- 5. system that takes in oxygen and releases carbon
- 7. dioxide carbon molecule
- 9. system takes in food and breaks it down
- 10. system transports molecules
- 14. joined together in a particular way