A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord.
Afferent nerve fibers carry signals from the somatic receptors to the posterior horn of the spinal cord or to the brainstem.
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Maybe.. to provide nutrients of Soil and Water...
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protect coastlines from storms and erosion, provide jobs for local communities, and offer opportunities for recreation.
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it helps the world in different ways