Living Things

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Across
  1. 2. changes in species that make characteristics change of many generations
  2. 5. scientist that studies and gathers fossils of extinct species
  3. 6. the creation of offspring through asexual or sexual processes
  4. 9. reproduction when an organism copies itself and divides
  5. 11. scientist that studies the origin and spread of diseases
  6. 13. things that are alive and use energy
  7. 14. organisms need energy from their environment to maintain their ________
  8. 15. humans have millions of these
Down
  1. 1. reproduction where two parents split genetic code and make life
  2. 3. any life form that has cells
  3. 4. keeping the internal environment stable
  4. 7. information of life is carried on this
  5. 8. result of reproduction
  6. 10. all organisms share a ________ genetic code
  7. 12. organisms use this to grow, develop, and reproduce