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
Answer:
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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