Of the three types of skeletal muscles found in fish, which type is least susceptible to fatigue?
A) Red
B) White
C) Blue
D) Pink

Question

Quizplus · Accepted Answer

Red muscles, also known as slow-twitch or Type I fibers, have a high density of mitochondria and myoglobin, which allows for a higher capacity for aerobic metabolism and oxygen storage. This helps to delay fatigue, making them better suited for prolonged, sustained activity such as swimming. White muscles, on the other hand, are fast-twitch fibers with fewer mitochondria and myoglobin, making them better suited for short bursts of energy but more susceptible to fatigue. Blue and pink muscles are not recognized types of skeletal muscles.

Of the Three Types of Skeletal Muscles Found in Fish