Evolution & Natural Selection

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Across
  1. 3. Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms.
  2. 4. change in a DNA sequence that affects genetic information
  3. 8. structures structures that do not have a common evolutionary origin but are similar in function
  4. 9. separation from others; aloneness
  5. 11. The hiding of something as a result of its appearance
  6. 12. An organism's physical appearance, or visible traits.
  7. 15. The process of grouping things based on their similarities
  8. 16. Characteristics that makes an organism more likely to survive, reproduce, and pass the characteristics onto their offspring.
  9. 18. The variety of different types of genes (DNA) in a species or population.
  10. 21. Chronological collection of life's remains in sedimentary rock layers
  11. 22. the study of similarities and differences among structures of living species
  12. 23. remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species.
Down
  1. 1. A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
  2. 2. similar structures that related species have inherited from a common ancestor
  3. 5. a characteristic passed on from a parent to an offspring like eye or fur color
  4. 6. English naturalist. He studied the plants and animals of South America and the Pacific islands, and in his book On the Origin of Species by Means of Natural Selection (1859) set forth his theory of evolution.
  5. 7. A complex molecule containing the genetic information that makes up the chromosomes.
  6. 10. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
  7. 13. Chain of islands near South America where Darwin developed his theory of natural selection by studying the unique life there.
  8. 14. A term that typically describes a species that no longer has any known living individuals.
  9. 17. A trait that helps an organism survive and reproduce
  10. 19. Ability of an animal to look like another more harmful animal
  11. 20. difference, variety; a condition of having many different types of forms
  12. 24. An organism's genetic makeup, or allele combinations.