Evolution Terms... quiz thursday.

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Across
  1. 1. ability of a trait to be passed from one generation to the next
  2. 3. change in species over time
  3. 5. differences in physical traits of an individual from the group to which it belongs
  4. 7. study of fossils or extinct organisms
  5. 8. mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals
  6. 11. theory that states that natural disasters shape Earth's landforms
  7. 13. all the individuals of a species that live in the same area
  8. 14. study of the distribution of organisms around the world
  9. 16. theory that states that the geologic processes that shape Earth are uniform through time
  10. 18. remnants of an organ or structure that functioned in an earlier ancestor
Down
  1. 2. process by which humans modify a species by breeding it for certain traits
  2. 4. body part that is similar in structure in different organisms but performs different functions
  3. 6. inherited trait that is selected for over time because it allows organisms to better survive in their environment
  4. 9. body part that is similar in function as a body part of another organism but is similarly different
  5. 10. group of organisms similar to one another can breed
  6. 12. trace of an organism from the past
  7. 15. principle that states that the changes in landforms result from slow changes over long period of time
  8. 17. measure of an organism's ability to survive and produce offspring relative to other members of a population