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The outermost protective layer of the plant body is:

APith
BEpidermis
CCortex
DXylem
Answer & Solution
Correct answer: B. Epidermis
The epidermis forms the outermost single-cell layer of leaves, stems and roots. It is tightly packed and protects the plant from mechanical injury, water loss, harmful microbes and harsh environmental conditions. In older woody plants, epidermis is replaced by cork.
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