Question: Why does the spinal cord have the right number of axons to innervate all the muscle cells? a. Each muscle cell sends a chemical message
Why does the spinal cord have the right number of axons to innervate all the muscle cells?
a. Each muscle cell sends a chemical message telling the spinal cord to make a neuron.
b. The genes cause a certain number of neurons to form and the same number of muscles to form.
c. Immature cells divide, with one daughter cell becoming a neuron and the other becoming a muscle.
d. The spinal cord makes an excess of neurons, but those that fail to innervate a muscle die.
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