Which one of the following is an example of cleistogamy
Sunflower
Vallisneria
Commelina
Calatropis
In chasmogamy pollination takes place in
Identify the type of flower $A$ and $B$
Mention about agents of pollination and explain pollination by wind.
In which characters air pollinated flowers differ from insect pollinated ones
.............pollination is quite common in grasses