Which of the following is/are living cells?I. | vedclass

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(B) In xylem,vessels $(I)$ and tracheids $(II)$ are dead cells at maturity because they lose their protoplasm to facilitate water conduction.Companion

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(B) In xylem,vessels $(I)$ and tracheids $(II)$ are dead cells at maturity because they lose their protoplasm to facilitate water conduction.Companion cells $(III)$ are specialized parenchyma cells found in the phloem of angiosperms. They are living cells that contain a dense cytoplasm and a large nucleus,which helps regulate the metabolic activities of the adjacent sieve tube elements.

Which of the following is/are living cells?
$I.$ Vessel,$II.$ Tracheids,$III.$ Companion cells

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Which of the following is/are living cells?$I.$ Vessel,$II.$ Tracheids,$III.$ Companion cells