The idea that the same genetic makeup can be expressed differently due to environmental factors acting at the cellular level is known as ___________

Svetlana is an eight-year-old third grader who likes to play Crazy Eights, ride her bicycle, and read books about nature. Which of the following children would Svetlana most likely chose as a "best friend"?

A) Marilyn, a seven-year-old girl from her church, who likes computer games and dolls B) Max, an eight-year-old boy in her class, who likes reading and going fishing C) Katisha, an eight-year-old girl in her class, who likes sports and card games D) Vladimir, a six-year-old neighbor boy, who likes riding bikes and painting animals

According to the Strange Situation classification system, an infant that seeks comfort when

distressed, yet will explore her environment when not distressed is termed: A) avoidant. B) ambivalent or resistant. C) disorganized/disoriented. D) secure.