Evolution Crossword Puzzle

1234567891011121314151617181920212223242526
Across
  1. 3. The process where organisms with helpful traits survive and reproduce more successfully.
  2. 5. Differences in genes among individuals in a population.
  3. 9. An environmental factor that affects survival and reproduction.
  4. 11. A well-tested explanation supported by evidence
  5. 13. The molecule that carries genetic information.
  6. 14. A characteristic of an organism.
  7. 18. The struggle among organisms for limited resources.
  8. 19. The collection of fossils that shows how life has changed over time.
  9. 20. Ancestor An earlier organism from which different species evolved.
  10. 21. A group of the same species living in the same area.
  11. 23. An organism's ability to survive and reproduce.
  12. 24. The change in populations of organisms over time
  13. 25. Body parts that are similar because they came from a common ancestor.
  14. 26. Reproduction involving two parents that increases genetic variation.
Down
  1. 1. Similarities in embryos that suggest common ancestry.
  2. 2. The ability of bacteria to survive antibiotics due to genetic changes.
  3. 4. A diagram that shows evolutionary relationships among organisms.
  4. 6. Name The two-part name used to identify a species.
  5. 7. The study of similarities and differences in body structures.
  6. 8. A section of DNA that controls a trait.
  7. 10. When all members of a species die out.
  8. 12. A change in DNA that can create new traits.
  9. 15. An inherited trait that helps an organism survive and reproduce.
  10. 16. A group of organisms that can reproduce and have fertile offspring.
  11. 17. The preserved remains or evidence of an ancient organism.
  12. 22. A trait passed from parents to offspring.