Some Words of Evolution

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Across
  1. 2. the study of the earth
  2. 4. refers to the variety of living things
  3. 6. a group of related organisms able to reproduce.
  4. 9. change over time
  5. 11. structures of similar logic
  6. 13. Survival of the _____, where an organism's behavior and form help it survive.
  7. 14. adaptive ______ is when one species evolves into many.
  8. 15. ability of a trait to be passed to the next generation.
  9. 16. when organisms disappear from the earth
Down
  1. 1. structures that have no current function
  2. 3. a characteristic change that helps an organism survive
  3. 5. differences among individuals in a population.
  4. 6. Natural ______ is the process by which evolution occurs.
  5. 7. principle stating that all living species contain changes from their parents; descent with _______.
  6. 8. Who proposed the theory of evolution by natural selection
  7. 10. preserved remains of ancient organisms.
  8. 12. formation of new species