The breast muscle of a wild duck is dark,while that of a domesticated chicken is white.What would be true of breast muscle in a wild duck?

Question

Quizplus · Accepted Answer

The dark color of the breast muscle in a wild duck is due to the presence of myoglobin, a protein that binds with oxygen and helps muscles sustain prolonged activity. Myoglobin is found in slow-twitch muscles, which rely on aerobic metabolism and have many capillaries and mitochondria to support energy production. Therefore, the breast muscle in a wild duck would be made up of slow-twitch muscles with abundant capillaries and mitochondria.

The Breast Muscle of a Wild Duck Is Dark,while That