The fact that exposure to a teratogen during the period of the zygote often leads to a spontaneous abortion (miscarriage) while the same exposure during the period of the fetus can lead to minor defects of bodily structures or systems demonstrates that
a. the impact of teratogens depends on the genotype of the organism
b. the impact of teratogens changes the course of prenatal development
c. different teratogens affect different aspects of prenatal development
d. the impact of a teratogen depends on the amount, or dose, of the teratogen
Question 2
One reason why children might associate more with peers of their own sex is because they
a. may be more likely to share similar play styles.
b. see more same-sex friendships represented on children's television programs.
c. are taught by their parents to show such a preference.
d. have a biological preference for same-sex peers.
Fossil from the Carboniferous period
Detail of the Chinese-style gate of Nishi Hongan-ji in Kyoto; Momoyama period; National Treasure
Transformation and Evolution of a Long-Period Comet
The effects of neonatal testosterone exposure on the size of the sexually dimorphic nuclei in male ...
Embryonic Period
Organic Diets Significantly Lower Children’s Dietary Exposure to Organophosphorus Pesticides