
To determine: Transcription and the reason why it is dubbed as “unavoidable evil”.
Introduction: Plants are involved in transporting both organic and inorganic nutrients and water throughout the body. The xylem and phloem in plants are specially designed to transport water and phloem, respectively, to all parts of the body. Apart from the xylem and phloem, plants also have specialized structures called stomata.

Explanation of Solution
Transpiration is the process that involves loss of water in the form of vapor from the plants through the stomata that is present in the leaves.
Transpiration is referred as “unavoidable evil” because transpiration can sometimes be extremely injurious to plants. Excessive transpiration often results in retarded growth of plants and kills many plants by dehydration.
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Chapter 30 Solutions
Laboratory Topics in Botany
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