You are presented with the quiz "what occurs when sperm swims to an egg inside an archegonium>" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fertilization occurs when sperm swim to an egg inside an archegonium" and "if the egg is fertilized, it can implant in the uterus and cause pregnancy". 

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


 

      pregnancy     