How is the dialogue of pollen rejection maintained in the pistil?

Pollen grains come in contact with stigma before dehiscence.

Match the columns.<table class="wysiwyg-table"><tbody><tr><td></td><td>Col…

Anemophily is not observed in<br> </h2></div>

Mango is a monocot plant.</h2></div>

The phenomenon of polyembryony was first observed in .................</h2></div>

Seeds are products of sexual reproduction because they ___________.<br> </h2></div>

Pollen grains in plants that are transferred via wind are heavy and thorny.