_______ flowers have very light weighted pollen grains.</h2></div>

Lever mechanism of pollination is observed in<br> </h2></div>

Intine is ____ in nature.

Dicot embryo consists of </h2></div>

Origin of integuments are _____

Wind pollinated flowers are</h2></div>

___ flowers are invariably autogamous as there is no chance of cross pollen landing on the stigma.

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