University of Massachusetts, Amherst - BIOLOGY 288Flowers & Trees - Evolution.

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Exercise 2 [ 3.1 ] Describe how the division of one population into two is represented in the tree diagram. [ 4.1 ] In addition to the change in color of the little flowers in the peaks, describe ... how the change in a trait is represented on the evolutionary tree diagram. [ 4.2 ] As the changes were happening in Step 4, time was moving forward. Aside from the time scale on the left, how is the movement of time represented in the evolutionary tree? . [ 6.1 ] Pick a flower picture at the tip of the tree diagram (representing one of the living mountain peak populations). Follow its branch all the way to the base of the tree. Does the flower picture at the tip reflect all the trait changes that occurred among its ancestors? I Exercise 3 [ 8.1 ] The more recent ancestors are indicated by the dark arrow. What color were their anthers? [ 8.2 ] The earlier ancestors are indicated by the white arrow. What color were their anthers? . [ 9.1 ] Before doing this, draw a diagram of what you think the evolutionary tree will look like when you carry a seed from Peak 1 to establish a new population on Peak 2. You don’t have to draw pictures of the flowers at the tips, just use the names of the populations [Show More]

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