why intercellular spaces are absent in sclernchyma tissue
Q3.
(a) Water hyacinth float on water surface because they contain aerenchyma tissue, which have air cavities in between them.
(b)The intercellular spaces are absent in sclerenchyma and the closely arranged cells offer strength and protection to the plant parts. The intercellular spaces in the tissue are absent and hence the cells appear to be polygonal in transverse section.
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