Phloem tissue of angiosperms differs from that of gymnosperms in having

Companion cells

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Sieve cells

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Sieve plates

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None of the above

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Solution

The correct option is A Companion cells
The sieve tubes lack the nucleus at the maturity so they are connected to the companion cells by the plasmodesmata. It is present in angiosperms only. It is absent in gymnosperms.
So, the correct answer is option A.

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