Living Environment Vocabulary

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Across
  1. 5. a guide that compares pairs of observable traits to help the user identify an organism
  2. 8. a substance that can speed up the rate of a chemical reaction without being changed or used up during the reaction
  3. 10. a hormone associated with sexual development and the reproductive system
  4. 13. a chemical process that occurs in a living thing
  5. 15. a compound that contains both hydrogen and carbon
  6. 17. all the chemical reactions that occur within the cells of an organism
  7. 18. the first organisms to become established in a new habitat
  8. 19. the passing of traits from parent to offspring
  9. 20. the part of an experiment that is changed to test a hypothesis
  10. 21. a balance that measures mass automatically
  11. 24. the small corrections that normally occur to keep an organism's internal environment within the limits needed for survival
  12. 25. any trait that helps an organism survive and reproduce under a given set of environmental conditions
  13. 26. any change in the environment that causes an organism to react
  14. 27. a hormone that prompts glucose to move from the blood into body cells, resulting in a lower glucose level in the blood
  15. 28. the combination of technology and biological sciences
  16. 29. a group of specialized cells that perform a specific function
Down
  1. 1. a tool used to measure the length of an object
  2. 2. the process in which nutrients are broken apart releasing the chemical energy stored in them
  3. 3. the specific role played by an organism or a population of organisms in the ecosystem
  4. 4. tiny pores found on the underside of most leaves
  5. 6. the process by which the chemical bond energy stored in nutrients is released for use in cells
  6. 7. a collection of fossils used to represent Earth's history
  7. 9. a kind of water pollution in which the temperature of the water increases
  8. 11. limited or able to be used up
  9. 12. any microscopic organism
  10. 14. a factor that might influence the dependent variable in an experiment
  11. 16. the destruction of an organism or the removal of an organism from its habitat
  12. 21. a hormone (produced by ovaries) that controls female sexual development and the reproductive process
  13. 22. the group in an experiment in which everything (except tested variable) is identical; the standard of comparison in an exp.
  14. 23. an endocrine organ that secretes insulin