You are presented with the question "What occurs when haploid gametes unite?" and the following answer choices: 
- Leptospirosis
 - reproduction
 - Plants growth
 - competition
 - fertilization
 - egg production
 - spread flower seeds
 - ejaculate

Now knowing that fertilization occurs when a sperm and an egg fuse to form a diploid zygote and haploid gametes unite to form diploid zygote, choose the best answer.


 

     fertilization    