{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

prelim 1 key - 11.(= evolutionary;phylogenetic),andtheuseof...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1. B 2. D 3. A 4. C 5. E 6. D 7. B 8. E 9. C 10. A 11. The critical missing component of this study is a consideration of the historical (= evolutionary; phylogenetic) similarities among these bird species, and the use of comparative analysis (= phylogenetic) methods to take those relationships into account when testing for a relationship between wing length and flight speed. The problem here is that species can be similar for two reasons: convergent responses to a similar environment (= adaptation), or by inheriting a trait from a common ancestor. In this graph there are two clusters of points; it is very possible that the upper right cluster is one group of closely related species (say, ‘falcons’) that all have long wings and fast flying, whereas the lower left cluster is a different group of closely related species (say, ‘dodos’) with short wings and slow flight. In this case, the association of long wings and fast flight has arisen only once, and this sample size of only one is very weak support for a general adaptive association between these traits.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern