Which of the Following Statements Is True About the Effects

Multiple Choice

Which of the following statements is true about the effects of teratogens on the developing fetus?

A) Any given teratogen usually has the same effect regardless of when in prenatal development exposure occurs.
B) The kind of damage done depends on the stage of development during exposure.
C) A teratogen will usually have the same effect regardless of how much exposure the fetus has to that teratogen.
D) Ancient Greeks believed in teratogens,but modern science has been unable to identify any.