Viruses usually infect the whole plant except the

Dermatogen,periblem and plerome are

According to the histogen theory,the stem epidermis is derived from:

Choose the correct sentences:
$(1)$ The meristem present at the tips of roots and shoots is called apical meristem.
$(2)$ Apical meristems are secondary meristems.
$(3)$ Intercalary meristem is the meristem that occurs between mature tissues and appears later than primary meristem.
$(4)$ Fascicular vascular cambium and interfascicular cambium are lateral meristems.

Meristem is defined as a plant tissue where

The tip of the root apical meristem is capped by the histogen known as