Question

why are xylem and phloem called complex tissues​

Answer 1

Answer:

Xylem and phloem are known as complex tissues as they are made up of more than one type of cells. These cells work in a coordinated manner, as a unit, to perform the various functions of the xylem and phloem. ... Xylem fibres consist of thick walls with an almost insignificant lumen.

Explanation:

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Answer 2

Answer:

Xylem and Phloem are called complex tissues because they are made up of more than one type of cells. These have the function of transport of food, water and minerals in the plant body.

1. Xylem or wood, is made up of Tracheids, Trachae (Vessels), Xylem Parenchyma and Xylem fibres.

2. Phloem or bast, is made up of Sieve tubes, Companion cells, Phloem Parenchyma and Phloem Fibres.

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