Molecular evidence suggests that the ability to generate electric signals first appeared in evolution some 700 to 800 million years ago, during the Tonian period.

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Wikipedia contributors. (2024, February 11). Neuron. In Wikipedia, The Free Encyclopedia. Retrieved February 12, 2024, from https://en.wikipedia.org/w/index.php?title=Neuron&oldid=1206127096

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Grant’s father Jesse Root Grant was a Whig Party supporter and a fervent abolitionist. Jesse and Hannah Simpson were married on June 24, 1821, and their first child, Hiram Ulysses Grant, was born on April 27, 1822.

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Neuron (Wikipedia) Within a nervous system, a neuron, neurone, or nerve cell is an electrically excitable cell that fires electric signals called action potentials across a neural network. Neurons communicate with other cells via synapses, which are specialized connections that commonly use minute amounts of chemical neurotransmitters to pass the electric signal from the presynaptic neuron to the target cell through the synaptic gap.

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