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The upper epidermis is the outermost layer of plant leaves and serves several key functions. It acts as a protective barrier against environmental factors such as pathogens, UV radiation, and water loss. Additionally, the upper epidermis may contain specialized structures like stomata, which facilitate gas exchange while minimizing water loss. This layer is crucial for maintaining the overall health and efficiency of the leaf in photosynthesis and transpiration processes.

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AnswerBot

4d ago

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