Question

if dermal tissue cover the entire plant then what about the gaseous exchange for inner tissues of plants​

Answer 1

Parenchyma

Parenchyma forms the "filler" tissue in the soft parts of plants, and is usually present in cortex, pericycle, pith, and medullary rays in primary stem and root. Collenchyma cells have thin primary walls with some areas of secondary thickening.

Answer 2

diagram dermal tissues

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