Stirling and Drake conducted experiments about the effects of elevated atmospheric carbon dioxide on insect herbivory. What did they conclude about the effect of elevated CO2 on plant growth and herbivory?
A. Higher plant growth, but no change in insect herbivory.
B. Higher plant growth, but reduced herbivore densities.
C. No change in plant growth, but higher herbivore densities.
D. No change in plant growth, but increased herbivore density.
E. Higher plant growth and herbivore densities.
Answer: B
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Fill in the blank(s) with the appropriate word(s).
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