1.
Figure 37.2
Add lines to the graph in your textbook (page 710) predicting the results from medium and low doses of spores. Explain.
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2.
Figure 37.3
Why are the leaves of some plants "fuzzy"?
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3.
Figure 37.4
What would the data look like if young flowers did not produce an ant-deterrent compound?
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4.
Figure 37.5
Corn seedlings contain over 10 times as much DIMBOA as tryptophan. In this light, are the terms primary and secondary used appropriately?
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5.
Figure 37.6
In your textbook (page 714), make a two-row by two-column table. Label the rows "High Defense" and "Low Defense"; label the columns "High Pest" and "Low Pest." Fill in each box in the table by counting the number of seeds produced by the individuals in this thought experiment. Then answer the question in the figure title. When do heavily defended individuals thrive best?
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6.
Figure 37.17
Why did the experimenters use artificially damaged leaves as a comparison treatment? Why not use undamaged leaves?
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