Here are several modern sources of music: a rock concert the radio an ipod the soundtrack in a movie background music played over speakers in a mall what do all of these have in common?

Think of a spreadsheet as a giant calculator spread of paper chart data collector

How is energy expended in active transport

Along what line of action can the camera move to follow the movement of actors for screen direction? a. along a 90-degree arcb. along a 120-degree arcc. along a 180-degree arcd. along a 360-degree arc