You are presented with the question "What occurs when a male gamete swims to an egg?" and the following answer choices: 
- permineralization
 - competition
 - movement
 - rapid expansion
 - fertilization
 - birth
 - copulation
 - ovulation

Now knowing that fertilization occurs when sperm swim to an egg inside an archegonium and gametes in males are called sperm, and in women commonly referred to as eggs, choose the best answer.


 

     fertilization    