Chapter 6: The Environment and Change Over Time

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Across
  1. 3. the study of chemical process in living organisms
  2. 5. an adaption in which one species looks like another species
  3. 8. an inherited traits that increase an organisms chance of surviving and reproducing in its environment
  4. 13. event that occurs when the last individual organism of a species dies
  5. 17. body parts that perform a similar function but differ in structure
  6. 18. the impression of an organism in a rock
  7. 19. a person who studies plants and animals by observing them
  8. 20. a fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposits
  9. 21. a chart that divides Earths history into different time units based on changes in the rocks and fossils
Down
  1. 1. a slight difference in an inherited trait of individual members of a species
  2. 2. the change over time in population of related organisms
  3. 4. the science of the development of embryos from fertilization to birth
  4. 6. the study of similarities and difference among structures of living species
  5. 7. record of all the fossils ever discovered on earth
  6. 9. radioactive decay
  7. 10. the selection and breeding of organisms for traits
  8. 11. the process by which populations of organisms with variations that help them survive in their environments
  9. 12. body parts of organisms that are similar in structure and positions but different in function
  10. 14. body parts that have lost their original function through evolution
  11. 15. the preserved evidence of the activity of an organism
  12. 16. an adaption that enables a species to blend in with its environment