In a stem which is covered by periderm and in | vedclass

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(B) Lenticels are lens-shaped openings found in the periderm of woody stems that allow for gaseous exchange.Bulliform cells are specialized epidermal

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Lenticels

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(B) Lenticels are lens-shaped openings found in the periderm of woody stems that allow for gaseous exchange.Bulliform cells are specialized epidermal cells in grasses that help in leaf rolling to reduce water loss.Pneumatophores are specialized roots found in plants growing in swampy areas,which help in respiration.Trichomes are epidermal outgrowths on the stem that primarily serve to reduce transpiration and protect the plant.

In a stem which is covered by periderm and in which stomata are absent,gaseous exchange takes place through

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