In 1999 a group of scientists speculated that Bt corn might be a threat to the environment by harming populations of ________ butterflies that laid their eggs on milkweeds found around Bt cornfields.

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The Answer of In 1999 a group of scientists speculated that Bt corn might be a threat to the environment by harming populations of ________ butterflies that laid their eggs on milkweeds found around Bt cornfields.

In 1999 a Group of Scientists Speculated That Bt Corn