Xenogamy or cross-pollination is performed by

$I$. Abiotic agencies

$II$. Biotic agencies

$III$. Insects only

Select the correct option for the given question

Choose incorrect pair :

Which one of the following may require pollinators, but is genetically similar to autogamy ?

Common floral reward provided by plants to pollinator are

Autoganny means....

Animal vectors are required for pollination in