Question

What is sieve tube?
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Answer 1

Answer:

Sieve tube, in flowering plants, elongated living cells (sieve-tube elements) of the phloem, the nuclei of which have fragmented and disappeared and the transverse end walls of which are pierced by sievelike groups of pores (sieve plates). They are the conduits of food (mostly sugar) transport.

Answer 2

Answer:

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in flowering plants elongated living cells of phloem the nucleus of which have fragmented and disappeared and transverse end walls of which are pierced by sieve likegroups pores.they are the conduits of food.

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