Pollen grain are able to tolerate extremes of temperature and desiccation because their exine consists of </…

What is oogamy?</h2></div>

Pollinia occur in.</h2></div>

<br> Give any two examples each of endospermic (albuminous) seeds and non-endospermic (exalbuminous) seeds.<br&…

__ provides safe place for insects to lay eggs.

What does the blue part stand for?

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

The seeds are scattered far from the parent plant in</h2></div>