What physiological adaptations occur when muscle fi bers are recruited to perform an endurance exercise workout? a. The number of capillaries increase b. The capillary density in the type I fi...

What physiological adaptations occur when muscle fi bers are recruited to perform an endurance exercise workout?

a. The number of capillaries increase

b. The capillary density in the type I fi bersincreases

c. The number of mitochondria increases

d. The concentration of myoglobin increases

e. All of the above