Zoology 210 Chap 1 & 6

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Anonymous
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61973
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Zoology 210 Chap 1 & 6
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2011-01-25 15:09:18
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Evolution Histology Embryology
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zoology exam 1 notes
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  1. Science is a way of knowing & understanding that ________.
    involves making & testing hypothesis.
  2. What are two ways in which scientists evaluate hypothesis?
    • 1. expirimental: good for proximate (immediate) causes.
    • 2. Comparative: good for ultimate (evolution) causes.
  3. exprimental is good for ________ (______).
    comparative is good for _________ (_______).
    • proximate (immediate) causes
    • (how things work)
    • ultimate (evolution) causes
    • (why things work)
  4. _______ (____): population may change through time. Inheritance of acquired characteristics: _________________.
    • Lamarck (1809)
    • : new traits are acquired during lifetime through use/disuse.
  5. Darwin: Naturalist abroad Beagle, _____ to explore _______. Most influential stop was _______. Concluded that different species had a ___________ & had diversified into different species.
    • 5 yrs mission, South American & Pacific.
    • Galapagos Island.
    • single species origin.
  6. What did Darwin fail to do?
    he failed to explain how inheritance & genetic variation worked.
  7. ______: an attribute that enhances an organisms ability to survive & succesfully reproduce.
    Adaption
  8. What are 3 sources of variation?
    • 1. independent asortment of alleles
    • 2. crossing over during meiosis
    • 3. mutations
  9. Genetic Drift: _____________. most important in ______ b/c it may cause loss of alleles.
    • a random change in allele frequencies from one generation to the next.
    • small populations.
  10. Carlous Linnaeus: ______, swedish botanist, published _____ in 1756.
    Binomial Nomenclature, Systema Maturae.
  11. ________ species concept: species are fixed, exhibiting little variation in time or geography.
    Typological
  12. _____ species concept: emphasizes historical fate & identity as a lineage. Evolutionary cohesivness.
    Evolutionary
  13. ______ species concept: emphasizes reproductive properties & reprodictve isolation. Doesn't work well with _____ & ____.
    • Biological
    • asexual, geographically isolated species.
  14. ____ of _____: oldest name is correct.
    Principle of priority
  15. What are the 3 Cladogram groups?
    • 1. Monophyletic
    • 2. Paraphyletic
    • 3. Polyphyletic
  16. ____: ancestor & some but not all descendents.
    Paraphyletic
  17. _____: ancestor & all of its desendents.
    Monophyletic
  18. _____: contain members from 2 unrelated groups.
    Polyphyletic
  19. what is a sister group?
    2 monophyletic groups that share a unique common ancestor.

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