BIO-1120: Chapter 21

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  1. Adaptation
    Inherited characteristic of an organism that enhances its survival and reproduction in a specific environment.
  2. Analogous
    Having characteristics that are similar because of convergent evolution rather than to descent from a common ancestor with the same trait.
  3. Artificial Selection
    The selective breeding of domesticated plants and animals to encourage the occurrence of desirable traits.
  4. Biogeography
    The scientific study of the past and present geographic distributions of species.
  5. Convergent Evolution
    The evolution of similar features in independent evolutionary lineages.
  6. Endemic
    Referring to a species that is confined to a specific geographic area.
  7. Evolution
    Descent with modification; the idea that living species are descendants of ancestral species that were different from the present-day ones; also defined more narrowly as the change in the genetic composition of a population from generation to generation.
  8. Evolutionary Tree
    A branching diagram that reflects a hypothesis about evolutionary relationships among groups of organisms.
  9. Fossil
    A preserved remnant or impression of an organism that lived in the past.
  10. Homologous Structure
    Structures in different species that are similar because of common ancestry.
  11. Homology
    Similarity in characteristics resulting from a shared ancestry.
  12. Natural Selection
    A process by which individuals that have certain inherited traits tends to survive and reproduce at higher rates than other individuals because of those traits.
  13. Paleontology
    The scientific study of fossils.
  14. Pangaea
    The supercontinent that formed near the end of the Paleozoic era, when plate movements brought all the land masses of Earth together.
  15. Vestigial Structure
    A feature of an organism that is a historical remnant of a structure that served a function in the organism's ancestors.
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BIO-1120: Chapter 21
2015-01-09 19:51:56
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