Evolution

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Across
  1. 5. a mode of selection that favors extreme values for a trait over intermediate values
  2. 7. situation where different species live in the same area but properties of individuals prevent interbreeding
  3. 10. passing traits from parent to offspring (2 word with W in between)
  4. 11. the man who made up the theory of biological evolution
  5. 12. the process where organisms better adapted to environment tend to survive and produce offspring (2 words no space)
  6. 14. a mode of selection that favors intermediate variants.
  7. 16. organisms not closely related independently evolve similar traits as a result of living in the same environment
  8. 19. isolation that prevent different species from mating because they mate at different times
  9. 20. the study of revolutionary relationships between organisms
  10. 22. a population of plants, animals, and organisms that are separated by exchanging genetic material
  11. 23. the remains or impression of a prehistoric organism
  12. 26. the process of tracing back two or more species to their common ancestor
  13. 28. measure of the relative frequency of an allele on a genetic locus (2 words no space)
  14. 29. the gradual development of living organisms
  15. 30. process when organisms come better suited to their environment.
Down
  1. 1. the formation of new and distinct species in the course of evolution
  2. 2. equilibrium that is marked by isolated episodes of rapid speciation
  3. 3. principle that states allele and genotype will remain constant(2 words no space)
  4. 4. variation in relative frequency of different genotypes in a small population (2 words no space)
  5. 6. when two species don't mate due to differences in courtship behavior
  6. 8. various structures in different species have different functions(2 words no space)
  7. 9. ability to survive to reproductive age
  8. 13. organisms that are more adapted to the environment tend to survive.
  9. 15. the diversification of a group into forms filling different ecological niches
  10. 17. the study of similarities and differences in the anatomy of different species (2 words no space)
  11. 18. a structure in an organism that has lost all or most of its original function during evolution(2 words no space)
  12. 21. an organ or bone that appears in different animals (2 words no space)
  13. 24. the stock of different genes in an interbreeding population (2 words no space)
  14. 25. a mode of selection in which an extreme phenotype is favored over other phenotypes
  15. 27. the influence of closely associated species on each other in their evolution