problem 1:
Does the sodium chloride produce an action potential?
problem 2:
Does this tracing distinct from the original threshold stimulus tracing? If so, describe how?
problem 3:
Does the hydrochloric acid produce the action potential?
problem 4:
Does this tracing distinct from the original threshold stimulus tracing? If so, describe how?
problem 5:
To summarize your experimental results, what types of stimuli can draw out an action potential?