Two Words

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Across
  1. 6. Morty's grandpa
  2. 8. To make humans better
  3. 9. DNA is arranged in what
  4. 10. The study of living organism structures
  5. 11. The study of living things
  6. 12. Likes to chase mice
Down
  1. 1. Has a trunk
  2. 2. Small changes in an organism
  3. 3. Lots of differences
  4. 4. Rick's grandson
  5. 5. Man's best friend
  6. 7. Large marsupial
  7. 11. Flying mammal