Question

The hard and strong part of a stem is called as
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Answer 1

Answer:

The thick strong stem you are talking about is basically made of a material called cellulose. Cellulose is made up a bunch of micro-tubes called xylem and phloem. The xylem tubes suck up fluids and nutrients from the Earth and the phloem moves the sugars down from the leaves into the rest of the plant

Answer 2

Answer:

lenticel is the hard strong part of stems.

Explanation:

I hope you will be understood