Across
- 2. do not contain carbon hydrogen
- 5. variable. measured in an experiment that got affected
- 7. mechanism. maintaining stability
- 9. value. benefit to a trait of a organism
- 11. flow in the system
- 13. tested through an experiment
- 14. speeds up chemical reaction
- 16. technology develop products that benefit society
- 17. time. divides earths history based on significant events
- 21. groups of cells that work together to perform specific functions
- 23. harbors another organism
- 24. produces insulin
- 26. signal in the environment
- 27. immune system tries to fight off
- 28. life forced within a cell
- 30. conclusion based off evidence
Down
- 1. change in color of reactions to different substances
- 3. cells. regulates opening of gas exchange
- 4. cannot make its own food
- 6. off. benefit in exchange for another
- 8. process to help understand and explain complex things
- 10. factor. results in growth
- 12. membrane. separates the interior of a cell from the external environment
- 15. produced by our bodies to send a signal if there is a forign substance
- 18. organism that can make its own food
- 19. variable. factor being observed in the experiment
- 20. process. chemical reaction to maintain life
- 22. regulates gas exchange
- 25. two gamete cells fuse during fertilization
- 29. acid. building block of protein