Final answer:
Elasticity is the tendency of a material or tissue to revert to its original form after being stretched or compressed, as seen in muscles and tendons.
Step-by-step explanation:
The tendency of tissue under load to return to its original size and shape after the removal of the load is known as elasticity. This property is observable in various biological materials, such as muscles and tendons. Muscles demonstrate elasticity by returning to their original length after relaxing from a contracted state, a behavior that is enabled by the elastic fibers within muscle tissue. Similarly, tendons exhibit elasticity by providing restoring force after being stretched, which is crucial for their function of connecting muscles to bones. Elasticity is the tendency of tissue under load to return to its original size and shape after removal of the load. This quality allows muscles to return to their original length when relaxed due to the presence of elastic fibers.