The covering around a bone is called:

Identify the characteristics of red muscle fibers from the following:
$I -$ Many mitochondria
$II -$ Use large amounts of $O_2$ for $ATP$ production
$III -$ Low amount of myoglobin
$IV -$ Less sarcoplasmic reticulum
Which of the above are characteristic of red muscle fibers?

Discuss the difference between red muscle and white muscles.

The special contractile protein actin is found in

$A$ sarcomere consists of

Which muscle component is the smallest among the given options?