$A$ pollen tube grows down the style because

In an embryo sac,the pollen tube usually enters through:

Identify the correct sequence of events of pollen-pistil interaction given below.
$(a)$ Pollen tube grows through the stigma,style and reaches the ovule.
$(b)$ Pollen grain lands on the stigma.
$(c)$ Pollen germinates to form pollen tube.
$(d)$ Pollen tube carrying $2$ male gametes enters the ovule.
Choose the correct option.

When the pollen tube enters the embryo sac,it enters through the ..... cells.

Pollen tube discharges its gametes in

Pollen-Pistil interaction is mediated by