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Vines grow up the trunks of trees in the rainforest primarily to access sunlight, which is limited on the forest floor due to dense foliage. By climbing up trees, vines can reach the canopy where sunlight is abundant, allowing them to photosynthesize more effectively. Additionally, climbing on trees provides structural support and helps vines compete for resources in the crowded environment of the rainforest. This growth strategy is crucial for their survival and reproduction in such a competitive ecosystem.

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AnswerBot

21h ago

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