How a earthworm demonstrates cephalization.?

Earthworms demonstrate cephalization through the concentration of nerve tissues and sensory organs at their anterior (front) end. This adaptation allows them to respond more effectively to their environment, as the head region contains a simple brain and sensory structures, facilitating navigation and interaction with their surroundings. While earthworms lack a defined head like more complex animals, their body plan reflects an early form of cephalization that enhances their ability to sense and react to stimuli.