Biology

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