Biological Evolution

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Across
  1. 3. Body parts that have seemingly no purpose in an organism but may have had a purpose in that organism some time in the past.
  2. 5. Different structure, same function
  3. 8. The study of development of different species as embryos to determine common ancestry.
Down
  1. 1. The study of distribution of species and ecosystems in geographic space and through geological time.
  2. 2. Species that are related will have similarities in DNA, RNA, and protein synthesis.
  3. 4. The idea that all life descended from a common ancestor.
  4. 6. The total number of fossils that have been discovered. The fossil record is often used to support or disprove a hypothesis.
  5. 7. Same structure, different function.