When the anther and stigma mature at the same time,it is called.....

The process where pollen grains from a flower reach the stigma of a flower on a different plant is called:

An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it,thereby pollinating the flower. This phenomenon is called

Select the correct option for pollination in $Zostera$.

Identify the set of correct statements:
$A$. The flowers of Vallisneria are colourful and produce nectar.
$B$. The flowers of water lily are not pollinated by water.
$C$. In most of water-pollinated species,the pollen grains are protected from wetting.
$D$. Pollen grains of some hydrophytes are long and ribbon like.
$E$. In some hydrophytes,the pollen grains are carried passively inside water.
Choose the correct answer from the options given below.

When pollen grains of a flower pollinate the stigma of another flower of the same plant,it is called