You are presented with the quiz "How does a seed gain water in order to produce a root?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "the force of water against the seed coat causes a root to emerge from a seed" and "instead, trees use a method called osmosis to force water upwards". 

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


 

     osmosis      