In epiphytes,where are the velamen cells found?

In angiosperms, root hairs arise from which one of the following regions of the root?

Climbing roots are present in

Choose the correct statement regarding plant roots.

$A$ root that never develops from the radicle is:

What is meant by modification of root? What type of modification of root is found in the:
$(a)$ Banyan tree
$(b)$ Turnip
$(c)$ Mangrove trees