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Phylogenetic tree diagram

  1. Oct 20, 2014 #1
    1. The problem statement, all variables and given/known data
    Draw a phylogenetic tree to illustrate the ancestry of the seven organisms chosen: dog, human, kangaroo, snapping turtle, penguin, rhesus monkey, bullfrog
    • At each branching point, identify the derived characteristic that creates the branch.

    2. Relevant equations


    3. The attempt at a solution
    I've attached the chart I created to identify which organism has each trait. I think I might have made a mistake that I can't find, because how am I supposed to create the diagram when the snapping turtle and penguin have the same traits, as well as the dog and rhesus monkey?
     

    Attached Files:

  2. jcsd
  3. Oct 21, 2014 #2

    Borek

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    Staff: Mentor

    Definitely each animal should be unique in some way. Perhaps look for other traits? Something that will make penguin different from the turtle?

    Can you start sorting these animals by their "age"? Which one of them seems to be the oldest in evolutionary terms?
     
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