Parenchymatous structure with intercellular spaces is

Vascular bundles containing cambium are called ......

Laticiferous vessels instead of laticiferous cells are found in

The stems and leaves of grass are rough due to the presence of .......

Select correct features w.r.t. trichomes in the shoot system:
$(a)$ Usually unicellular
$(b)$ Branched or unbranched
$(c)$ May be secretory
$(d)$ Soft or stiff
$(e)$ Helps against transpiration

Which one of the following is a type of tissue system?