Evidence of Evolution

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Across
  1. 4. measures the age of a fossil by comparing the amount of radioactive form of an element is contained in it with the amount of its decay product.
  2. 7. body parts that have similar function bu they do not look alike.
  3. 8. identifying the age of a fossil by comparing it to another fossil.
Down
  1. 1. body parts that do not seem to play a major role in an organisms life functions.
  2. 2. body parts that look alike in different organisms but may have different functions.
  3. 3. study of the distribution of Earth's organisms.
  4. 5. study of embryos.
  5. 6. early stage of development in an organism.