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Development involves growth from a zygote to a human being. There are four stages of human development.
Prenatal stage involves development of the human being from the time of fertillization. Usually this is between 0 and 10 weeks after fertilization.
Childhood stage involves development between 0 and 19 years. Here human beings develop in knowledge and development of physical organs.
Adulthood stage starts from 20 years onwards. This stage involves human beings getting independent and learning to survive independently.
Death is the epitomw of human development. This stage involves the collapsing of all functions of the human body.
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