The prenatal period that takes place during the first two weeks following conception is known as the ___________ stage
a. germinal c. fetal
b. embryonic d. placenta
a
Psychology
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Between-subjects experiments
a. eliminate the possibility that one condition will affect another b. use fewer subjects than within-subjects experiments c. are always preferable to within-subjects experiments d. All of these are true.
Psychology
In which of the following are about one-fourth of newborns infected by AIDS?
a. the United States c. Asia b. Africa d. South America
Psychology