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Insect Prey Supplements Nitrogen, Not Energy

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A carnivorous plant's insect prey supplies nitrogen it cannot obtain from boggy, nutrient-poor soil, per Bio 2591, while its energy still comes from photosynthesis, per Bio 0579.

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A digested insect's nitrogen builds proteins the plant could not synthesize from its low-nitrogen soil.

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"Carnivorous plants eat instead of photosynthesizing," per Bio 2593, conflates a supplementary nitrogen source with the plant's unchanged energy source.