Across
- 4. anything that takes up space and has mass
- 7. all living things in a particular area together with the abiotic
- 8. substances that minimize changes in concentration of H and OH
- 10. single-celled organisms that lack organelles
- 11. liquid that is completely homogeneous mixture of substances
- 12. cells with membrane-bound organelles and nuclei
- 16. all the individuals of a species living in an specific area
- 17. process of change that has transformed life on Earth
- 18. dissolving agent of a solution
- 19. collection of all ecosystems
- 20. substance that increases H concentration
Down
- 1. units of inheritance
- 2. attraction between different substances
- 3. smallest most fundamental unit of matter
- 5. average kinetic energy of the molecule in a body of matter
- 6. substance that doesn't have affinity to water
- 9. substance that has an affinity for water
- 13. starting molecules of a chemical reaction
- 14. helps the transport of water against gravity
- 15. groups of similar cells carrying the same function