Happy Monday!

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Across
  1. 5. layer of the atmosphere closest to the ground
  2. 7. published the theory of evolution
  3. 8. the science branch known as the study of life
  4. 10. the father of genetics
  5. 12. what important layer is in the stratosphere
Down
  1. 1. in 1967, what town was the first successful heart transplant performed in?
  2. 2. top grossing movie in 2025 so far
  3. 3. what company does Musk own that launches things into space?
  4. 4. acronym used to remind you what to do if there's a stroke.
  5. 6. the odorless, radioactive gas that leaks into some basements
  6. 9. who invented/discovered penicillin?
  7. 11. what elephant did Edison kill while experimenting with electricity?