Most of the metabolic energy needed by a bird for a long-distance migratory flight is stored as
A) glycogen.
B) fat.
C) protein.
D) carbohydrates.
E) ATP.

Question

Quizplus · Accepted Answer

Fat is the most energy-dense storage molecule and provides a significant portion of the metabolic energy needed for long-distance migration. Glycogen is a short-term energy source that is quickly depleted, while protein is used primarily for structural and enzymatic functions in the body. Carbohydrates can also be used for energy, but they are not as energy-dense as fat. ATP is not a storage molecule but rather an energy currency that is constantly regenerated within cells.

Most of the Metabolic Energy Needed by a Bird for a Long-Distance