You are presented with the quiz "What swims from male to female reproductive organs in 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 in males are called sperm, and in women commonly referred to as eggs". 

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


 

      male gametes     