About _____ percent of the synapses that existed at 2 years of age are lost by adulthood

Jeana is happy with her pay, has great benefits, nice co-workers and a pleasant work environment. She spends the day just filing folders all day. What work-stress related variable might explain the fact that she feels a significant amount of work stress a

a) accountability b) physical variables c) mental challenge d) task variety

The concept of gender constancy is another form of Piaget's concept of

A) egocentrism. B) assimilation. C) accommodation. D) conservation.