Which of the following is considered a teratogen? (hint- there is more than 1 one this list)

6. Researchers from the Dunedin Multidisciplinary Study found that the combination of a particular genetic predisposition and stress during adolescence, increases participants' risk for developing depression in adulthood. Critics might question the relevance of the results, given that the kind of stressors experienced by today's youth differ so much from the kinds of stressors experienced by the participants in the 1980s. This is an example of a _________________ effect.

Pascalis et al., (2005) used a longitudinal design to show that 9 month old infants who had looked at pictures of monkey faces at home between 6- and 9 months could discriminate between different monkeys, but infants who had not looked at pictures at home, could not.  This suggests that ____________ may be the mechanism that is driving the perceptual narrowing effect.  

Which of the following type of twins share as much genetic material with each other as they do with their other siblings?

Generational effects are a problem for _______ designs

In relation to pre-term birth, we say that the limit of viability is currently 24 weeks gestation. This is because....