How many facets are present in a parenchyma cell
$20$
$14$
$10$
$7$
Which is absent in plants
Vascular tissues in flowering plants develop from
The tunica-corpus theory was proposed by
A nail is driven into the trunk of a $30$ year old tree at a point $1$ meter above the soil level. The tree grows in height at the rate of $0.5$ meters a year. After three years, the nail will be
Quiescent centre is found in