Can a shark detect an axon field? A nerve signal is transmitt...

Can a shark detect an axon field? A nerve signal is transmitted along the long, thin axon of a neuron in a small fish. The transmission occurs as sodium ions Na+ transfer like tipping dominos across the axon membrane from outside to inside. Each short section of axon gets an excess of about 6 x 10⁸ sodium ions/mm. Determine the field 4.0 cm from the axon produced by the excess sodium ions on the inside of the axon and an equal number of negative ions on the outside of a 1-mm length of axon. The ions are separated by the 8 x 10^-9-m-thick axon membrane. Will a shark that is able to detect fields as small as 10-6 N/C be able to detect that axon field? Explain.