How does the fetus grow?

The fetus grows through a process called embryogenesis, which begins after fertilization when the zygote divides and develops into a multi-cellular embryo. Nutrients and oxygen are supplied through the placenta, which connects the fetus to the mother's bloodstream. As cells differentiate, they form various tissues and organs, leading to the development of systems like the cardiovascular and nervous systems. Throughout pregnancy, the fetus undergoes significant growth and development, preparing for birth.