You are presented with the quiz " the production of primordia cause roots to " 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "roots grow in length and width from primary and secondary meristem" and "meristem growth occurs by the production of primordia which develop at the meristem periphery". 

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


 

  grow         