The immediate regeneration of $ATP$ used up during muscle contraction is facilitated by

Which type of muscles are responsible for the movement of the pinna in humans?

Given below are two statements $:-$
Statement-$I$ :- Each organised skeletal muscle in human body is made of a number of fascicles,held together by a common connective tissue layer called fascia.
Statement-$II$ :- The portion of the myofibril between two successive '$Z$' lines is considered as the functional unit of muscle contraction,known as a sarcomere.
In the light of the above statements,choose the correct answer from the options given below $:-$

Which of the following statements is correct regarding visceral muscles?

Actin and myosin proteins are related with

In which of the following,growth is possible through increase in volume?