Across
- 3. Compares observable traits to help identify organism (2 words)
- 5. Group in experiment where nothing is altered
- 7. Molecules that don't contain both hydrogen and carbon
- 10. Any trait that helps an organism survive and reproduce (2 words)
- 13. Body's primary defence against pathogens
- 15. Hormone associated with reproductive system
- 16. Measure of quantity of matter in object
- 18. Any microscopic organism
- 19. Earth's history as revealed by layers of bedrock (2 words)
- 20. Molecular organism that obtains energy through photosynthesis
- 21. Molecules that contain hydrogen and carbon
- 23. Chemical used to make cell structures more visible under microscope
- 25. Looking at a peer's work for flaws (2 words)
- 26. Hormone produced by ovaries
- 27. Something accepted that may or may not be true
- 28. Tiny pores found on underside of most leaves
- 29. Chemical link between atoms
Down
- 1. Combination of technology and biological sciences
- 2. Alteration of DNA sequence
- 4. Collection of fossils used to show Earth's history (2 words)
- 6. Chemical process that occurs in living things (2 words)
- 8. Sperm or egg
- 9. Any change to environment that causes organism to react
- 11. Destruction of organism or removal from habitat
- 12. Found in nucleus, tells cells what to do
- 13. Hormone that regulates amount of glucose not in cells
- 14. Formation of new combination of genes during sexual reproduction (2 words)
- 17. Mixing of genetic info from sperm and egg
- 22. Segment of DNA that codes for specific trait
- 24. Unlimited amount of something