Chapter 12 Vocabulary-Vaughn Wetzel

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Across
  1. 2. similar anatomy from common ancestors
  2. 6. similar early development
  3. 8. a body part that once had a function but no longer works
  4. 10. a change in species overtime
Down
  1. 1. similar DNA and amino acid sequences
  2. 3. A fossil that shows an intermediate state between an ancestral trait and that of its later descendants
  3. 4. similar structures, function in similar environments
  4. 5. study of fossils
  5. 7. remains or traces of organisms from past
  6. 9. characteristics in related species can have underlying similarity even though functions may differ