What period of human development brings the most rapid time of change?

Question:

What period of human development brings the most rapid time of change?

A) the prenatal period

B) infancy and toddlerhood

C) early childhood

D) Adolescence

The  correct answer is A) the prenatal period  

Explanation:

The fastest growth rate for a human is during its embryonic life.

If this rate of growth is sustained, it would provide close to 2 feet of growth per year.

This extraordinary rate of growth is largely independent of the growth hormone. Growth hormone only begins to play a role in growth in the final weeks before birth. The growth of the embryo and fetus is (among other factors) mainly mediated by maternal nutrition.

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since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .