You are presented with the question "What happens with the formation of the embryo?" and the following answer choices: 
- Plants growth
 - Plant reproduction
 - oxidation reaction
 - cancer
 - sex
 - cell death
 - It expands
 - fertilization

Now knowing that fertilization occurs when a sperm and an egg fuse and after a sperm and egg unite, they form an embryo, choose the best answer.


 

        fertilization 