Question

which tissue is this

Answer 1

Heya !!!

That's Phloem tissue....

Phloem transports food materials, usually from leaves to other parts of the plant....

Phloem in Angiosperms is composed of sieve tube elements, companion cells ,phloem parenchyma and phloem fibres......

Gynosperms have Albuminous cells and sieve cells . They lack sieve tubes and companion cells...

Hope this helps you :)

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Answer 2

phloen tissue 
used in transporting food and other materials
process is known as translocation