Question
A permanent tissue is described as complex tissue when it has:

Answer

  1. One type of cells, performing one function.
Explanation:
They can be thin walled or thick walled and have permanent shape. Permanent tissues can be simple or permanent complex tissues. Complex permanent tissue is made up of a group of same type of cells which have common origin and function. Xylem and phloem are complex tissues and form vascular tissue of the plant.

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