living environment crossword
Across
- 3. a molecule found on outer surfaces of cells that the immune system recognizes as good or bad
- 6. building blocks for all living things
- 7. the act of cutting apart a dead organism to examine its internal structure
- 8. technique used to make identical organisms
- 9. a medicine that fights off bacterial infections
- 12. the combination of technology and biological sciences
- 13. a substance that can speed up the rate of a chemical reaction without changing or being used up during the reaction
- 16. organism that is genetically identical whatever made it
- 17. all of earths ecosystems, collectively.
- 18. a laboratory technique used to separate mixtures of molecules
- 19. any trait that helps and organism survive and reproduce under a given set of environmental conditions
- 22. cell in a plant where photosynthesis is
- 23. flow of materials in a cell
- 24. the group in a experiment in which is identical
- 25. something accepted as true that may not be true
- 26. a protein that attacks or marks pathogens
Down
- 1. chemical link between atoms that holds molecules together
- 2. changes that occur from the fertilized egg to a complete individual
- 4. a balance that measures mass automatically
- 5. a thread-like structure found in the nucleus of cells that contains DNA and proteins that carry genetic information.
- 10. a chemical process that occurs in a living thing
- 11. the process that transforms developing cells into specialized cells w/ diff. structure and functions
- 14. the destructions of an organism or the removal of an organism from its habitat
- 15. combination of all different populations in the same environment
- 20. disease when the HIV virus attacks immune system
- 21. jellylike substance between the cell membrane and nucleus that contains specialized structures
- 25. a condition in which a persons immune system is overly sensitive to harmless things