Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

تمرين 10

The prenatal period, which begins at conception and ends at birth, is composed of three different stages. The first stage of prenatal development refers to the two-week period following conception; this is called the (a) _____ stage. The second stage of the prenatal period spans the 2-8 weeks that follow conception; this is called the (b) _____ stage. The third stage of the prenatal period begins two months after conception and lasts until birth; this is called the (c) _____ stage.