Fact 1: Fertilization of gametes produces a diploid zygote.

Fact 2: Examples of gametes are ova and spermatozoa.

Given the two facts above, answer the question "what is fertilized to produce a diploid zygote?" with the following options: 
- graptolites
 - members of their own species
 - ova and spermatozoa
 - salt and pepper
 - mitosis
 - peachleaf willow
 - bacteria
 - light energy


 

   ova and spermatozoa      