Myoglobin: The Protein Responsible for Skeletal Muscle's Reddish-Brown Color
The correct answer is myoglobin.
Myoglobin is a protein found in skeletal muscle that stores oxygen and gives it its characteristic reddish brown color. It is similar to hemoglobin, the protein that carries oxygen in the blood, but it has a higher affinity for oxygen and can store it for longer periods of time.
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