Life Science Chapter 1

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Across
  1. 1. group in an experiment on which a test is performed
  2. 4. refers to aquatic environments in which water contains little in any salt
  3. 6. study of living things
  4. 9. stable internal condition of an organism
  5. 10. having to do with water
  6. 15. process in which cells produce ATP by combining nutrients with oxygen
  7. 16. active mainly during the day
  8. 17. conclusion based on reasoning from evidence
  9. 19. refers to land
  10. 20. plant life
  11. 22. science of classification
  12. 23. refers to environments in the seas and oceans which contain salt water
  13. 24. theory that has never been proven false
  14. 25. sensible explanation to a scientific problem
  15. 26. group in an experiment that lacks the independent variable and is used as a standard for comparison
  16. 27. facts, theory, way of explaining an object or event by using a set of facts
Down
  1. 2. area between the highest and lowest points that the tide reaches
  2. 3. place within an environment where an organism lives
  3. 5. everything surrounding an organism being studied
  4. 7. hot spring in the ocean floor
  5. 8. sum of all chemical processes of life
  6. 11. living in trees
  7. 12. active mainly at night
  8. 13. system that scientists use to pursue scientific knowledge
  9. 14. collections of salt water and sea life that could not escape when the tide went out
  10. 18. animal life
  11. 21. living thing