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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