Fact 1: Gametes then unite in fertilization and form a diploid zygote.

Fact 2: Examples of gametes are ova and spermatozoa.

Given the two facts above, answer the question "what are united in fertilization for form a diploid zygote?" with the following options: 
- h2o
 - Veins and arteries.
 - produce offspring
 - Most plants
 - joined
 - ova and spermatozoa
 - glucose and fructose
 - Organic compounds


 

      ova and spermatozoa   