Wood is a common name of
Phloem
Secondary xylem
Cambium
Vascular bundles
What constitutes the cambial ring?
Secondary xylem and phloem in dicot stem are produced by
Which of the following tissues originate from ray initials of a cambium
The sclerenchyma of the hypodermis in the Pinus needle helps in
$I.$ Protection of internal tissues
$II.$ Protection of leaves from microbes
$III.$ Gaseous exchange
$IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes
Which of the function of epidermis is/are relevant from the above given statements?