✅ This is a genuine image of a cross section of grass leaf under a microscope. (No part of the leaf is 'smiling' in any literal sense, of course, but the round features known as 'vascular bundles' do resemble 'smiley faces' when viewed from above.)
Marram grass leaf. Light micrograph of a cross section through a closed leaf of Marram grass, Ammophila arenaria. The deeply grooved leaf is thrown into folds and it uncurls when mature so that the folds do not face the centre. The folds conserve water and withstand salt, and prevent excessive evaporation. Round vascular bundles are visible inside each fold, serving to transport food and water through the leaf. Spines on the surface discourage animals from eating the leaf.
that the"smiley faces" are in fact vascular bundles typical in plants called monocots — plants that are only composed of one leaf, like grass. So although the above image does depict the components of a real leaf cross section under a microscope, it's safe to say that the image doesn't in any literal sense show a leaf"smiling" or"happy to see you." In fact, describing these characteristics as smiley faces is a subjective call.
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