Introducing biology

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Across
  1. 4. Group of similar organisms that can reproduce.
  2. 6. Study of microscopic organisms.
  3. 7. Variety of living organisms in an area.
  4. 11. Any living thing.
  5. 12. The study of living organisms.
  6. 14. Branch of biology that studies plants.
  7. 17. Surroundings in which organisms live.
  8. 19. Basic structural and functional unit of life.
  9. 20. Study of the form and external structure of organisms.
Down
  1. 1. Gradual change in living organisms over time.
  2. 2. Passing of traits from parents to offspring.
  3. 3. Study of the internal structure of organisms.
  4. 5. Study of how living organisms function.
  5. 8. Study of chemical processes in living organisms.
  6. 9. Natural home of an organism.
  7. 10. Study of interactions between organisms and their environment.
  8. 13. Study of heredity and variation.
  9. 15. Branch of biology that studies animals.
  10. 16. Study of cells.
  11. 18. Science of classification of organisms.