Fact 1: Oxygen is just one substance transported by the blood.

Fact 2: Blood glucose is the substance that feeds our cells.

Given the two facts above, answer the question "Oxygen and glucose share this mechanism in the body:" with the following options: 
- it needs them
 - aerobic capacity
 - transportation
 - flow of electrons
 - Energy.
 - Veins and arteries.
 - sweating
 - oxidation reaction


 

   transportation      