Companion cells are found in the phloem of

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(D) Companion cells are specialized parenchyma cells that are closely associated with sieve tube elements in the phloem of angiosperms.They are absent

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Angiosperms only

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(D) Companion cells are specialized parenchyma cells that are closely associated with sieve tube elements in the phloem of angiosperms.They are absent in pteridophytes and gymnosperms.In gymnosperms,albuminous cells perform a similar function to companion cells.Therefore,companion cells are exclusively found in angiosperms.

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