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A nerve cell must transmit a signal from the spinal cord to a muscle in the foot, a significant distance. For the signal to arrive at the muscle with the same strength it had when it started, which of the following mechanisms is essential?
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A specific neurotoxin is discovered that alters nerve cell function. When a signal is initiated at one end of a very long nerve cell, the signal's strength significantly decreases as it travels towards the other end. Based on this observation, what is the most likely functional consequence for the organism?
A nerve cell must transmit a signal from the spinal cord to a muscle in the foot, a significant distance. For the signal to arrive at the muscle with the same strength it had when it started, which of the following mechanisms is essential?