The presence of vessels in the xylem is a/an .......

Deposition of callose is found in

Plant cells without the nucleus are

What is incorrect for $vessel$?

Deciduous plants shed their leaves during hot summer or in autumn. This process of shedding of leaves is called abscission. Apart from physiological changes,what anatomical mechanism is involved in the abscission of leaves?

What type of food materials are stored by xylem parenchyma and phloem parenchyma?