Use the Following Information When Answering the Corresponding Questions)

question 30

Multiple Choice

Use the following information when answering the corresponding questions) .
Some plants continually produce secondary defense compounds. Other plants are induced to form secondary defense compou when they are injured. Corn seedling leaves that are chewed on by the caterpillars of a type of cutworm moth emit immediate chemicals LOX products) , and, after six hours, large amounts of terpenoid compounds are released into the air. The terpenoid are released not only from the leaf being chewed, but from all leaves of the plant. The terpenoid compounds attract a parasitoid wasp female that lays her eggs on the caterpillar. When the wasp larvae hatch, they eat and kill the moth caterpillar. T.C.J. Turlings, J. H. Loughrin, P. J. McCall, U. S. R. Rose, W. J. Lewis, and J. H. Tumlinson. 1995. How
caterpillar- damaged plants protect themselves by attracting parasitic wasps. Proceedings of the National Academy of Science
92:4169- 74.)
-How could you test the hypothesis that caterpillar saliva and a wound are both necessary to attract the parasitoid wasps?

• A) Put caterpillar saliva on an intact leaf.
• B) Slash the corn leaves with a razor blade.
• C) Put caterpillar saliva on a leaf wound.
• D) All of the above actions are necessary for testing the hypothesis.

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