What change would most improve the usefulness of the graph? replace the concentration descriptions with actual values. plot contractions per second instead of contractions per minute. remove the plotted points and just keep the line. remove the name of the organism from the title.

A on edge replace the concentration descriptions with actual values

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

yes? sounds right, but you didn’t ask a question.