Principles of Evolution

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