Multiple choice

__________ are not present in xylem tissue.

  1. Sieve tubes

  2. Tracheids

  3. Vessels

  4. Parenchyma

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A Correct answer
Explanation

Xylem is a complex vascular tissue composed of four main cell types: tracheids, vessels, xylem parenchyma, and xylem fibers. Sieve tubes are specialized cells used for transporting food and are a primary component of phloem, not xylem. Therefore, sieve tubes are the odd one out in this list.

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