Evolutionary Biology Vocabulary

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Across
  1. 4. a trait that makes it more likely that an individual will survive in a specific environment
  2. 5. a group of individuals born and living at about the same time
  3. 6. an older population from which two or more newer species descended
  4. 12. the very long time that spans the history of Earth, from the very first cellular life to the present
  5. 13. the process by which the distribution of traits in a population changes over many generations
  6. 14. a part of an organism (i.e. one or more bones)
  7. 17. a group of the same type of organism living in the same area
  8. 19. to receive genes from a parent
  9. 20. an organism's arm, leg, or wing
Down
  1. 1. living things, such as plants, animals, and bacteria
  2. 2. having died out completely and no longer alive anywhere on Earth
  3. 3. everything (living and nonliving) that surrounds an organism
  4. 7. a random change to a gene that sometimes results in a new trait
  5. 8. a scientist who studies fossils in order to understand the ancient history of life on Earth
  6. 9. the process by which species adapt to environmental changes over a very long time
  7. 10. a more recent species that evolved from an ancestor population
  8. 11. a related organism from a previous generation
  9. 15. to classify based on scientific examination
  10. 16. a graph that uses bars to show how characteristics or values are distributed within a group
  11. 18. evidence of life from the past, such as fossilized bones, footprints, or leaf prints