8.\tThe part where the fertilized egg develops. By SizegeneticstorePosted on June 18, 2022 8. The part where the fertilized egg develops. Answer: The fertilized egg (zygote) begins to develop into a hollow ball of cells called the blastocyst. Share this:Related posts:Significant event contributed to global awareness during the later middle ages,Ano ang ginawa mo para mahinto ang walang awang paglabag sa karapatang pantao?Gray marble to yellow marble 9 gray marbles 2yellow marbles