1. Neurons, by some estimates, spend up to 40% of their energy maintaining a resting membrane potential of about -70 mV. Why is this a worthwhile investment? What would be the impact on our behavior if the
resting membrane potential was shifted either more negative, to about -90 mV, or more positive, to about
-65 mV? (Assume that everything else about the neuron, including threshold, remains unchanged).