Unit 4 Vocabulary - Environmental Bio

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Across
  1. 4. concept of Charles Darwin, continued existence of organisms which are best adapted to their environment & the extinction of others.
  2. 6. change over time
  3. 8. divergence between populations occupying the same geographic range, leading to distinct species.
  4. 11. a heritable trait that increases an individuals fitness and survival.
  5. 14. the process of selection conducted under human direction
  6. 15. sequence of DNA that codes for a particular trait
  7. 16. changes in DNA
  8. 18. a physical incompatibility between reproductive organs of two organisms.
  9. 19. form of reproductive isolation, where habitat preferences of species lowers the probability of mating.
  10. 20. the preserved remains of impression of an extinct organism
Down
  1. 1. when species are reproductively isolated from others, due to differences in behaviors.
  2. 2. a feature a species inherited from an ancestor but now is less elaborate & functional
  3. 3. the process by which traits that improve chances of survival are passed on.
  4. 5. the disappearance/dying off of a species
  5. 7. the separation of species by physical barriers, examples may be mountains, oceans, etc.
  6. 9. the process of how new species are generated
  7. 10. a reproductive barrier that prevents interbreeding between closely related species, due to differences in fertility, etc.
  8. 12. biological evolution that occurs by chance
  9. 13. physical features found in different organisms that share a common ancestor.
  10. 17. how reproductively successful an organism is in their environment.