Fact 1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.

Fact 2: Haploid gametes unite to form diploid zygote.

Given the two facts above, answer the question "What occurs when haploid gametes unite?" with the following options: 
- Leptospirosis
 - reproduction
 - Plants growth
 - competition
 - fertilization
 - egg production
 - spread flower seeds
 - ejaculate


 

     fertilization    