You are presented with the quiz "What swims from male to female reproductive organs for fertilization?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sperm had to swim from male to female reproductive organs for fertilization" and "gametes, the sperm and eggs, are produced by mitosis in the haploid gametophyte". 

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


 

 gametes          