Which of the following statements about critical periods of growth and development is true?

a. Critical periods are defined as specific time periods early in pregnancy when toxins that may harm fetal growth and development are able to pass through the placenta to the fetus
b. It is possible to reverse ill effects of adverse nutrition exposures on fetal growth and development by eliminating the adverse nutritional exposure later
c. The most intense period of fetal tissue and organ growth and development in the third trimester of pregnancy
d. Critical periods of growth and development are characterized by hyperplasia, or an increase in cell multiplication


Ans: d. Critical periods of growth and development are characterized by hyperplasia, or an increase in cell multiplication

Nutritional Science

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