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"Carnivorous Plants Eat Insects Instead of Photosynthesizing"

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State

Picturing a carnivorous plant as living off insects overstates a real adaptation — prey supplies supplementary nitrogen, per Bio 2591, while photosynthesis supplies energy.

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A sundew deprived of insects still survives and photosynthesizes, though it grows slower in nitrogen-poor soil without that supplement.

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This entry states the popular assumption — Bio 2595 gives what prey supplies versus what it does not.