The epidermis serves as the outermost protective layer of a plant, shielding it from water loss, mechanical injury, and invasion by parasites. In plants living in dry habitats, the epidermis may be thicker to provide enhanced protection against water loss.
What is the function of the epidermis in plants, and how does it adapt to different environmental conditions?
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The epidermis in plants serves as the outermost protective layer, playing a vital role in regulating gas exchange, water absorption, and providing a physical barrier against pathogens. In adapting to different environmental conditions, the epidermis may develop specialized structures. In arid environments, plants may have a thickened cuticle to reduce water loss, while in aquatic plants, it may have stomata on the upper surface for efficient gas exchange. Trichomes, hair-like structures on the epidermis, can reflect sunlight or trap moisture. These adaptations highlight the versatility of the epidermis in responding to diverse environmental challenges and optimizing plant survival.