Unit 4 Vocab Part B

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Across
  1. 7. Ability to survive and reproduce in a certain environment
  2. 8. Features of different species that are similar in function but not really in structure
  3. 9. Separation of groups of organisms as a result of changes in their ecology or in the environment in which they live
  4. 11. Change by which a species or organism becomes better suited for it’s environment
  5. 12. Changing in the structure of a gene
  6. 15. Heredity passed from the parent to offspring and determines characteristics
  7. 16. Different kinds of living organisms are changed or developed
  8. 17. Type of reproductive isolation mechanism among sexual organisms in which the differences in the timing
  9. 18. Similar physical features in organisms that share a common ancestor but the features serve completely different functions
  10. 20. A mechanism of evolution
Down
  1. 1. Two or more populations of an ancestral species accumulate independent genetic changes
  2. 2. Remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
  3. 3. Features of an organism that are considered to have lost much or all of their function through evolution
  4. 4. Physical separation of populations of organisms from one another due to geographical barriers
  5. 5. Process by which humans choose individual organisms with certain phenotypic trait values for breeding
  6. 6. Physical incompatibility between reproductive organs of two organisms
  7. 10. Any organism becoming extinct
  8. 13. Continued existence of organisms which are best adapted to their environment
  9. 14. When species are reproductively isolated from others due to differences in behavior
  10. 15. Result of unusual event and happens by chance
  11. 19. Describing or identifying something precisely or of stating a certain requirement