Fertilization occurs when sperm swim to an egg inside an archegonium, and male gametes are sperm. Given these facts, when fertilization occurs, what swims to an egg inside an archegonium among the following options:
- egg shells
 - male gametes
 - yolk
 - h2o
 - barnacles
 - Something to move
 - pollen
 - flow of electrons


 

  male gametes       