Answer:
oxygen and glucose
your welcome i hope this helps
Explanation:
The DV is measured for results
The ependymal cells line the ventricles of the brain. They compose a thin lining along the brain's ventricle cell, and the central canal of spinal cord. They are a type of glial cells. They play an important role in the production of cerebrospinal fluid.
Cuz of the refraction of light