The tiny sacs in a synaptic knob that release chemicals into the synaptic space are called ______

Handedness

A) reflects the greater capacity of one side of the brain to carry out skilled motor action. B) is evident in a wide range of skills from birth. C) is a heritable trait, especially for left-handed people. D) is strongest for simple, rather than complex, skills.

According to Piaget, what is the major accomplishment of substage 6?

a) Children understand that a person or object continues to exist even if it cannot be seen. b) Children are able to show purposeful acts with deliberate variety. c) Children employ goal-directed behavior. d) Children exhibit the capacity for mental representation, or symbolic thought.