What is the third period of prenatal development is the period of the?

The third period of prenatal development is known as the fetal period, which begins at around nine weeks of gestation and continues until birth. During this stage, the developing fetus undergoes significant growth and maturation of systems and organs. Key developments include the formation of recognizable human features, increasing complexity of bodily functions, and the accumulation of body fat in preparation for life outside the womb. This period is crucial for overall development and health of the fetus.