Question

fill in the blank question muscle fibers that have an abundant blood supply, many myoglobin molecules and mitochondria and are adapted for exercises like walking, jogging and biking, are known as __________ twitch fibers.

Explanation:

Muscle fibers with abundant blood - supply, myoglobin and mitochondria for endurance activities are slow - twitch fibers. They are fatigue - resistant and rely on aerobic metabolism.

Answer:

slow