The root system growing near the base of the radicle in monocots is

The pneumatophores (respiratory roots) are involved in .......... .

Which of the following represents the correct sequence of the four regions of a root, starting from the root tip and moving upwards?

In halophytes,pneumatophores are helpful in

Asafoetida (Hing) is obtained from Ferula asafoetida. What is it?

Epiphytes like $Vanda$ develop a special layer of absorptive tissue called $velamen$,consisting of $4$ or $5$ layers of long polygonal cells. $Velamen$ is formed by: