Evolution

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Across
  1. 2. Remains or traces of organisms that lived in past ages.
  2. 3. Prokaryotes that make food from photosynthesis.
  3. 7. A body part that does not seem to play a major role in an organism’s life functions but was more important in the organism’s ancestors.
  4. 8. Body parts of different organisms that have similar structure but may have different functions.
  5. 10. An organism’s ability to withstand effects of a harmful agent.
Down
  1. 1. The field of biology that deals with classifying organisms.
  2. 4. Body parts that have a similar function but not a similar structures.
  3. 5. An organism’s ability to survive and reproduce.
  4. 6. The process by which organisms best suited to their environment survive and reproduce.
  5. 9. An organism’s ability to fight disease.