Final answer:
Muscle tissue is elastic and can stretch up to 50 percent of its original length without breaking.
Step-by-step explanation:
A muscle can stretch up to 50 percent of its original length and return to that length without breaking due to a quality of muscle tissue called elasticity. Muscle tissue can recoil back to its original length due to elastic fibers. It also has the qualities of extensibility, meaning it can stretch or extend, and contractility, which allows it to pull on its attachment points and shorten with force.