Skeletal muscle makes up 40-45% of body weight(i) State the different types of skeletal muscles fibres and explain the difference between them?(ii) What is the pennation angle and in what way does it influence force production of a muscle?(iii) In literature, a standard measure is used to approximate the number of fibres of a whole muscle.a. What is this standard measure?b. How is this standard measure calculated?c. How does the force-length curve vary with small and large values of this parameter?