Evolution

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Across
  1. 3. Prokaryotes that make food by photosynthesis.
  2. 4. An organism that feeds on other organisms.
  3. 5. A crack in the ocean floor that emits extremely hot, mineral rich water.
  4. 8. An organism's ability to fight a disease.
  5. 11. The process by which organisms best suited to their environment survive and reproduce.
  6. 13. Body parts of different organisms that have a similar structure but have different functions.
  7. 14. Explains how mitochondria, chloroplasts, and other organisms in eukaryotic cells evolved.
Down
  1. 1. Body parts that have a similar functions but not a similar structure.
  2. 2. The evolution of a new species from an existing species.
  3. 6. The field of biology that deals with classifying organisms.
  4. 7. The study of embryos.
  5. 9. An organism's ability to withstand the effects of a harmful agent.
  6. 10. The mass of gases that surrounds Earth.
  7. 12. An organism that makes its own food.