The cori cycle is a pathway in which there is cycling of due to in muscle and in the liver. the blood transports from muscle to liver and from liver to muscle to make a complete cycle.

The Cori cycle (also known as the Lactic acid cycle), named after its discoverers, Carl Ferdinand Cori and Gerty Cori, refers to the metabolic pathway in which lactate produced by anaerobic glycolysis in the muscles moves to the liver and is converted to glucose, which then returns to the muscles and is metabolized ...

The answer is observations and interpreting.