You are presented with the quiz "Gametes then unite in fertilization and eventually become what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "gametes then unite in fertilization and form a diploid zygote" and "zygotes are diploid and undergo cell division to become an embryo". 

So, what's the best answer to the question?


 

 embryo          