You are presented with the quiz "pollen consists of tiny grains that are held within what" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "pollen consists of tiny grains that are the male gametes of plants" and "flowers are the sex organs of certain plants and hold the male and female gamete producing systems". 

So, what's the best answer to the question?


 

    flowers       