Does the earthworm have many small ganglia located along the length of its body?

Yes, the earthworm has many small ganglia located along the length of its body. These ganglia act as simple brain-like structures, coordinating movement and processing sensory information. Each segment of the earthworm contains a pair of ganglia, which are connected by a ventral nerve cord that runs the length of the body. This arrangement allows for localized control of muscle contractions and other functions.