class crossword

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Across
  1. 3. are the smallest living thing on the earth
  2. 4. occurs when citizens of the same country fight one another
  3. 6. are the parts of an experiment that can change
  4. 7. is a nonliving particle of hereditary material
  5. 9. means putting together things that are a like
  6. 10. is the time of development within the mothers body
  7. 14. plants use the energy in sunlight to make sugar
  8. 15. have hair at least some parts of there lives
Down
  1. 1. is a person who rules with complete power
  2. 2. is a weak form of a virus
  3. 5. to life,liberty, and property
  4. 8. study between relations ships in all living things
  5. 11. as all the using things
  6. 12. is many countries or regions under the control of one nation
  7. 13. scientist spend a great amount of time on this