Answer :

Final answer:

A zygote is the structure formed when a sperm cell and an egg cell fuse, leading to the development of a new baby.


Explanation:

A zygote is formed when a sperm cell and an egg cell fuse during conception. This structure begins as a single-cell entity that rapidly divides to form the embryo and placenta, eventually developing into a new baby.


Learn more about zygote formation here:

https://brainly.com/question/51369704


Answer:

A. fetus

That's how babies are made...