$A$ root is called adventitious when it is

How many of the following statements are consistent with the functions of the root?
$I$ - Absorption of water and minerals from the soil
$II$ - Providing a proper anchorage to the plant parts
$III$ - Storing reserve food material
$IV$ - Synthesis of plant growth regulators

Respiratory roots are found in

Velamen present in orchids helps in

In dicotyledonous plants and monocotyledonous plants, the root systems are of the ...... and ...... types, respectively.

The lateral roots generally originate in