Examlex
The highest energy occupied molecular orbital in the F-F bond of the F2 molecule is ________.
Embryonic Stage
The stage of prenatal development that lasts from implantation through the eighth week of pregnancy. It is characterized by the development of the major organ systems.
Teratogens
Agents or factors that cause malformation of an embryo or fetus, such as certain drugs, chemicals, or infections.
Vulnerable Period
A timeframe during which an individual or system is more susceptible to damage or harm due to exposure to stresses or adverse conditions.
Congenital
Present at birth; resulting from the prenatal environment.
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