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- What do you mean by compound branched tubular glands?this is dugesia. label the epidermis, ventral epidermis, parenchyma, gut lumen, gastrodermis, body cavity, gastrovascular cavity, and derivatives of each germ layer if they are visible.mature tracheary elements are dead cells, made up of only their cell walls and with neither cytoplasm nor nuclei. Why is it necessary for these cells to be dead in order to function properly?
- What do you mean by simple tubular glands?The anther wall consists of four wall layers where: (a) tapetum lies just inner to endothecium (b) middle layers lie between endothecium and tapetum (c) endothecium lies inner to middle layers (d) tapetum lies next to epidermis.What is the function of the endodermis and casparian strip?.