Although their assessments were designed for different purposes, Hall, Gesell, and Alfred Binet all took a __________ approach to child development

As described in lectures on emotion, the primary motive system of defensiveness is associated with the __________________ in the brain.

Fill in the blank(s) with the appropriate word(s).

Understanding that an object's mass, volume, or amount remains the same even if its appearance changes, provided that nothing is added or taken away in the process, is referred to as _____

a) object permanence. b) irreversibility. c) conservation. d) symbolic function.