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Natural Selection Vocab Review

Natural Selection Vocab Review. Change through time. Evolution. Physical evidence of past organisms changing through time, left in rocks. Fossil Record. Homologous Structures. All the alleles which are possible in a population’s genes that could be passed on. Gene pool.

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Natural Selection Vocab Review

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  1. Natural Selection Vocab Review

  2. Change through time. Evolution

  3. Physical evidence of past organisms changing through time, left in rocks. Fossil Record

  4. Homologous Structures

  5. All the alleles which are possible in a population’s genes that could be passed on. Gene pool

  6. Favors ONE of the extremes. Directional selection

  7. Geographic Isolation

  8. Species originate through a gradual change of adaptations. Gradualism

  9. Mechanism for change in a population for individuals to survive. Natural selection

  10. Adaptation

  11. Evolution of new species from one common ancestor that results in multiple new species whom can not interbreed. Speciation

  12. Physical barrier divides a population, creating different populations which evolve separately and can not interbreed. Geographic Isolation

  13. Natural Selection

  14. Favors BOTH extremes in a population, eliminating the average. Disruptive selection

  15. The frequency of alleles in a population remains the same over many generations. Genetic equilibrium

  16. Vestigial structure

  17. Evolution that distinctly related organisms evolve similar traits when they live in similar environments. Convergent evolution

  18. Populations can no longer interbreed due to differences in genetic material. Reproductive isolation

  19. Punctuated Equilibrium

  20. Structure with similar function and arrangement with a common origin. Homologous structure

  21. Favors the AVERAGE in a population, resulting in less variation. Stabilizing selection

  22. An organism’s response to or change with its environment. Adaptation

  23. Analogous Structures

  24. A single ancestral species evolves into a wide array of species to fit different habitats. Adaptive radiation

  25. Structure in present day organism that is not useful, but was in an ancestor. Vestigial structure

  26. Directional Selection

  27. Transport of genes into a population by migrating individuals. Gene flow

  28. Structures that are similar in function but have no common origin. Analogous structure

  29. Populations can no longer interbreed due to differences in mating behaviors. Behavioral isolation

  30. Species that were once similar to ancestral species change in different ways as they adapt, creating new species. Divergent evolution

  31. Speciation Or Divergent Evolution

  32. The percentage of any specific allele occurring in a population. Allelic frequency

  33. Species can occur relatively quickly with periods of genetic equilibrium in between them. Punctuated equilibrium

  34. Stabilizing Selection

  35. Evolution of a trait enabling an organism to respond to environmental factors. Adaptation

  36. Gradualism

  37. Natural selection that favors one of the extreme variations of a trait. Directional selection

  38. Some male frogs of the same species, changed their mating call, causing them to become a different species over time, by attracting different females Behavioral Isolation

  39. A population is divided due to a change in particular behaviors. Behavioral isolation

  40. Disruptive Selection

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