Answer: chloride ions
Explanation:
This movements of chloride ions into the blood plasma to replace the outward diffused bicarbonate ions is called chloride shift, It occurs to restore the blood ionic balance altered by the bicarbonate ions diffusion out into plasma
The same amounts of Chloride ions replaced the lost amount of bicarbonate ions
the tail bone connects to the spine :)
Myelin sheaths are found on the outside of nerve cells. They protect the sensitive axons underneath like how insulation protects wires.