Which of the following tissues do not have specifically thickened walls
Parenchyma
Collenchyma
Fibres
Sclereids
Given below are two statements:
Statement $I$: Parenchyma is living but collenchyma is dead tissue.
Statement $II$ : Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements, choose the correct answer from the options given below:
Collenchyma is
The commercial jute fibres are obtained from
Plant cells without the nucleus are
The function of a vessel is