Evolution

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Across
  1. 4. process by which new species are created
  2. 8. the main mechanism of evolution
  3. 10. this type of evolution is when unrelated species evolve in similar ways from different ancestors, like birds and bats.
  4. 11. this type of evolution is when a population splits off and becomes a new species, the two are related but develop new traits for their environment
  5. 13. change in the gene pool of a population over time
  6. 14. the variety of living things in our environment
  7. 16. a product of the reproductive process
  8. 18. natural selection for courtship purposes
  9. 19. in example of mouse speciation what separated the mouse population
  10. 20. if genes mutate and individuals are selected then these evole
  11. 22. a group of individuals that can interbreed
Down
  1. 1. along with ammonia it was the most abundant gas in the early atmosphere
  2. 2. when speciation occurs due to a geographic separation
  3. 3. all organisms share a tremendous similarities in this
  4. 5. credited with developing the theory of evolution
  5. 6. different species have different gene pools, this is called
  6. 7. the birds Darwin studied
  7. 9. selection when natural selection favors individuals that are like everyone else
  8. 12. when natural selection favors a single trait like color
  9. 15. along with selection and time shape how natural selection works
  10. 17. when a gene is copied incorrectly this occurs and may be good or bad
  11. 21. there are different varieties of these under the taxon species, they may interbreed.