Which among the following are absent in the collenchyma?
Chloroplasts
Vacuoles
Intercellular spaces
Pectin deposition
The difference in phloem of gymnosperms and angiosperms is due to
What is meant by permanent tissue ? Give its types.
The tissue which is living but does not possess nucleus in mature stage is
Give differences : Sieve cell and Sieve tubes
Both vessels and companion cells are absent in