Bill Nye the Science Guy

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Across
  1. 4. Ritual conducted to keep you happy and healthy
  2. 7. Defending itself from harmful things
  3. 10. only the best genes survive to pass on
  4. 11. group of same species that live in same area
  5. 14. Not dangerous and doesn't spread
  6. 15. product of two parents mating
Down
  1. 1. something that can spread and grows on bread
  2. 2. Spreads rapidly and widely
  3. 3. The study that involves live stock and plants
  4. 5. Your beliefs or morale values
  5. 6. Spread worldwide or country to country
  6. 8. Differs from parent in a mutant way
  7. 9. Using living organisms to solve a problem or make profit
  8. 12. Something that spreads disease
  9. 13. Something that can spread and do harm