Aform of communication that is based on a system of symbols is called

Who was thomas jefferson and what was his constitution toward the development of the us government

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

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!