Here's why:

* Structure: Muscle tissue is composed of specialized cells called muscle fibers that are bundled together and arranged in a specific way.

* Function: Muscle tissue is responsible for movement, both voluntary (like walking) and involuntary (like your heartbeat).

* Types: There are different types of muscle tissue, including skeletal muscle (attached to bones), smooth muscle (found in organs), and cardiac muscle (found in the heart).

Let me know if you'd like to learn more about any specific type of tissue!