clickers wk3 LS1 Sp16 - Why are large nches now living on...

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4/15/16 1 LS1 Clicker Ques3ons Week 3 Spring 2016 Why are large finches now living on the Galapagos islands different from the original source popula3on? a. The separa3on of habitats reduced gene flow between popula3ons b. Natural selec3on favored individuals that were more fit in new environment c. Gene3c driN occurred in the two popula3ons d. All of the above Which group would form pre-zygo3c isola3ng mechanisms more rapidly? a. Allopatric species b. Sympatric species c. No difference. 1 2 3 4 5 6 7 8 9 10 11 12 Based on this phylogeny, which branch is most closely related to 8? a. 6 b. 7 c. 9 d. 14 13 14 Image credit: Evolu3on: Making Sense of Life (2013), C. Zimmer & D.J. Emlen These trees represent different evolu3onary rela3onships. a. True b. False Use the morphological traits of these monster-spider species to create a phylogene3c tree.
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4/15/16 2 OG B F A D E C Excluding the outgroup (OG), how many monophyle3c groups are present in this tree?
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  • Spring '10
  • HALPIN
  • Evolution, Galapagos, original source popula3on, different evolu3onary rela3onships, D.J. Emlen, C. Zimmer

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