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Draw the diagram of a microsporangium and label its wall layers. Write briefly on the role of the endothelium.
Answers (1)
Role of Endothecium: Endothecium, along with the epidermis and the middle layer, provides protection to the pollens during development. Once pollen grains are mature, the three layers (including endothecium) rupture and thus facilitate the dehiscence of pollens.
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