Regarding prenatal teratogen exposure, which of the following statements is FALSE? 1. Exposure to teratogens during critical developmental periods will have more severe effects on the fetus. 2. Embryo lethality becomes more likely as the toxic dose is increased. 3. Major effects include growth retardation and malformations. 4. The immune system of the fetus is primitive, so the fetus has little to no ability to fight off chemicals and repair itself. 5. There is considered to be a toxin level threshold below which the fetus is capable of repairing itself.
Added by Ismael P.
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Step 1: Exposure to teratogens during critical developmental periods will have more severe effects on the fetus - TRUE Show more…
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