Final answer:
The following statement is true. Chemical similarity predominates between the two extracellular fluids.
Step-by-step explanation:
The statement that chemical similarity predominates between the two extracellular fluids is true. Both plasma and interstitial fluid are components of extracellular fluid. While plasma is the major component of blood, interstitial fluid surrounds cells that are not blood cells.
The compositions of plasma and interstitial fluid are more similar to each other than either is to the intracellular fluid. They both have high concentrations of sodium, chloride, and bicarbonate.