Explain the most memorable achievement of the mixtec civilization

Sarah and juan were running in the school track meet. the muscles in their arms and legs them run fast. other muscles that you cannot see were also at work. the most important muscles for this track meet were the muscles in their a) arms. b) eye. c) feet. d) heart.

Plz apex

Behaviorists focus on behaviors that.. a are observable b are caused by unconscious desires and conflicts c people become consciously aware of d can be categorized into a theoretical system