Question

question ① which of the following is not true of slow skeletal muscle fibers? answer they contain more mitochondria than fast fibers. they are also called white fibers. they have about half the diameter of fast fibers. they can contract for an extended period of time, long after fast fibers would fatigue. i dont know yet

Explanation:

Slow - skeletal muscle fibers are red fibers due to high myoglobin content, not white fibers. Fast - fibers are often called white fibers. Slow - fibers have more mitochondria for sustained energy, smaller diameter, and better endurance compared to fast - fibers.

Answer:

B. They are also called white fibers.