The American Association on Intellectual and Developmental Disabilities (AAIDD), as well as DSM-5, use the term ________ for what was previously called "mental retardation."

__________ occurs because the brain adapts to the presence of drugs by responding less intensely to them

a) Drug tolerance b) Habituation c) Psychological dependence d) Withdrawal symptoms

The __________ and social skills of people with Williams syndrome are remarkable considering their poor intellectual development

Fill in the blank with the appropriate word.