The amount of space an object has
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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Answer:
enzyme
Explanation: enzyme is produced by a living substance which acts like a catalyst to bring about a specific biochemical reaction
