Which of the following statements correctly describes how the hormone glucagon works with the liver to regulate blood sugar levels when they fall too low?
Glucagon stimulates the liver to convert glycogen into glucose, increasing blood sugar levels.
Glucagon stimulates the liver to convert glucose into glycogen, decreasing blood sugar levels.
Glucagon works with insulin to convert glycogen into amino acids, increasing blood sugar levels.
Glucagon stimulates the pancreas to absorb more glucose, lowering blood sugar levels.