Typically, neurons firing action potentials encode a signal’s intensity by a. changing the size of their action potentials. b. changing the frequency of their action potentials. c. firing at precise moments so as to signal different sized signals. d. sending signals of different sizes down different axonal branches. e. all of the above

b.. changing the frequency of their action potentials

Explanation:

Neurons encode the intensity of the stimulus in the frequency with which they fire.

Hence, the correct answer for neurons firing action potentials encode a signal’s intensity  is option B that is  changing the frequency of their action potentials

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