What did Kirant people look like

What period of history refers to the time when people did not have written records

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

Kate is 14 years old and just started taking dance classes with her friends at a local dance studio. this is her first time in a dance program, so everything is new to her. her friends convinced her to join the class since they have been enjoying it for a few months. how could the following terms her succeed in the dance class? ● secondary reinforcement ● identity vs. role confusion ● observational learning how could the following terms hinder her success in the class? ● circadian rhythm ● basal ganglia ● vestibular sense