Becoming an embryo and attaching and forming a fetus is evidence that there is a new individual that is “on the path.” This ...

The terms "zygote", "pre-embryo", "embryo" and "foetus ... with unforeseeable consequences, over human life at its very beginning and in its first stages. Various procedures now make it possible ...

Human pregnancy lasts approximately 40 weeks ... An egg becomes fertilized when a sperm penetrates it, creating a zygote. For the first eight weeks, the developing baby is called an embryo.

Biology of the life cycle including development, growth, maturation, and aging and its impact on nutritional requirements of humans from the zygote to the elderly is considered. How to meet these ...