The backward bending of the shank is worked out by

Total number of muscles in the human body is:

Which protein is present in muscles?

Which of the following structures contract and relax rhythmically to produce movement?

Which of the following statements correctly describes the type of muscle present in the specified body part?

Select the correct option for the following statements:
$(i)$ The most important respiratory organ in frogs is the skin / lungs.
(ii) Skeletal muscle / Cardiac muscle exhibits rhythmic contraction.