Isodiametric sclereids, found in hard endocarp of coconut and fleshy portion of some fruits are

Axillary bud originates from

In old sieve tubes at the end of growing season, which of the following gets deposited over sieve plate to regulate sugar transport?

$A$. According to Clowes root apex consists of an inverted cup like structure.
$B$. Low amount of $RNA$, $DNA$ and protein is characteristic of waiting meristem.
$C$. Cells of reserve meristem can divide only when the root apex gets injured.

$T.S.$ of stem of Cucurbita can be identified from the $T.S.$ of sunflower stem by the presence of

Some vascular bundles are described as open because these