You are examining a beloved population of trillium in the backyard of your childhood home.  You recall as a child that flowers were bright white.  As you return to the population you note that many (but not all) of the flowers have a faint purple vertical stripe in the middle of each petal.  List each of Darwin’s postulates and what must be true about your population if it has undergone evolution by natural selection for petal color.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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QUESTION 16

  1. You are examining a beloved population of trillium in the backyard of your childhood home.  You recall as a child that flowers were bright white.  As you return to the population you note that many (but not all) of the flowers have a faint purple vertical stripe in the middle of each petal.  List each of Darwin’s postulates and what must be true about your population if it has undergone evolution by natural selection for petal color.

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