The three major stages of prenatal development are germinal, embryonic, and fetal. The embryonic stage occurs during the third to eighth weeks of pregnancy. The zygote implants itself in the uterine wall also the formation of the placenta occurs during this stage. Correct answer: A In this stage also the neural tube, which forms the brain and spinal cord, begin to develop.
During the embryonic stage ; The Zygote implants itself in the uterine wall ( A )
The prenatal development of an offspring in humans is broken down into three( 3 ) stages and the foetus develops differently during each stage. The embryonic stage which is the second stage after the germinal stage occurs from the third ( 3rd ) week to the eighth ( 8 ) week of pregnancy. during this period the zygote will implants itself to the uterine wall also the neural tube starts to form as well.
Hence we can conclude that during the embryonic stage the zygote implants itself in the uterine wall
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