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Which of the following best completes the passage below? [#permalink]
18 Aug 2006, 04:43
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Which of the following best completes the passage below?
Monarch butterflies, whose average life span is nine months, migrate from the midwestern United States to selected forests outside Mexico City. It takes at least three generations of monarchs to make the journey, so the great-great-grandchildren who finally arrive in the Mexican forests have never been there before. Yet they return to the same trees their forebears left. Scientists theorize that monarchs, like homing pigeons, map their routes according to the earthâ€™s electromagnetic fields. As a first step in testing this theory, lepidopterists plan to install a low-voltage transmitter inside one grove of â€œbutterfly treesâ€
The conclusion should be based on monarch butterflies.
Although the statement in C is correct it is not the conclusion that the lepidopterists look forward to make. Lepidopterists is more interested in monarch butterflies (they started the experiment to test the Monarch Butterflies theory) and hence they would make the conclusion that Monarch butterflies are sensitive to electricity.