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Question : Arrangement of four wall layers in microsporangium from inside to outside is as follows :

Answer»

EPIDERMIS, ENDOTHECIUM, TAPETUM and MIDDLE LAYERS
Epidermis, middle layers, endothecium and tapetum
Epidermis, endothecium, middle layers and tapetum
Tapetum, middle layers, endothecium and epidermis

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