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mrs.hre
02-13-2008, 07:36 PM
:knitting: i am taking a test and stuck on a question. the base unit of the nervous system is
brain
spinal cord
neuron
nephron
i put down spinal cord.

KnittingKelly
02-13-2008, 07:41 PM
Neuron....The neurons make up botht the brain, the spinal cord, and the nerves. The nephron is part of the kidneys :)

mrs.hre
02-13-2008, 07:45 PM
thank you very much for your help