Evolution and Landforms

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Across
  1. 4. a study of the structure or internal workings of something.
  2. 6. the scientific study of genes and heredity
  3. 7. no longer existing
Down
  1. 1. the act or process of changing to better suit a situation
  2. 2. a supercontinent that incorporated almost all the landmasses on Earth
  3. 3. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
  4. 5. a surface of contact between two groups of unconformable strata.