In the context of organization in long-term memory, a(n)is an arrangement of items into groups or classes according to common or distinct features.

hiearchy

Explanation:

Hierarchy refers to a situation in which people Or things are ranked according to importance.

Hierarchy is the arrangement of items into groups and classes according their disctint or common feature.

teens need 8-10 hours of sleep. it kind of depends on what time you get up. but prob around 10 or 11 p.m. or 11 or 11: 30 p.m.