External Factors Affecting the Rate of Transpiration.
An adaptation...
Question
An adaptation to reduce transpiration is
A
Spongy parenchyma
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B
Sunken stomata
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C
Hydathodes
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D
Aerenchyma
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Solution
The correct option is B Sunken stomata
The high rate of transpiration leads to heavy loss of water. Plants needs to preserve water by curtailing the rate of transpiration. The sunken stomata trap moist air which reduces diffusion and reduces water loss. Plants with sunken stomata often have fewer stomata in general than the other plants.