..... are dead cells with thick secondary cell wall for support

phloem is formed from tracheids,vessels and parenchyma

phloem is formed from campanion cells,seive tubes and parenchyma

secondary thickening in xylem with lignin can take many shapes

A secretory cavity that arises by separation of cell and subsequent formation of a secretory epithelium arises by separation of cell and subsequent formation of a secretory epithelium

A secretory cavity that initially schizogenous but lysis occurs in cavities in later stages as the epithelium cells lining the space undergo autolysis further enlarging the space

A secretory cavity that is formed by breakdown of the cell forming a cavity not bounded by definite epithelium

vascular tissue includes

Ground tissue includes

collenchyma can be used for storge of nutrients and as a site for photosynthesis

.......is spindle shaped or elongated cells with pointed the cell wall is composed of cellulose with lignin

......are isodiametric cells with thick, lignified wall & may show well-marked striation in the wall , occurs in the hard outer coat of the seeds, fruit, bark