Why are pollens spiny?

A true-breeding line is that :-</h2></div>

Which one is absent in windy areas<span><br> </span></h2></div>

A botanist collected some fruits with hook-like spines and when the seeds of the same have been germinated they turned o…

Pollination by wind is called ____

When embryo develops from nucellus, it is known as </h2></div>

"Seed have shield shaped structured called cotyledon". Is it of any importance? specify.</h2></div&gt…

Pollination by snails is _____