Wet soil
earthworm moves by the hair like projections called setae .
It moves...
An earthworm's ability to dig through soil is aided by its strong, muscular body and the hydraulic pressure created by its body fluids. The earthworm's setae, tiny bristle-like structures on its body, also help it grip onto soil particles as it moves. These structures are located along the earthworm's body segments.
Setae
The gizzard is the organ that helps the earthworm grind its food into tiny pieces.
The gizzard is the organ that helps the earthworm grind its food into a million pieces.
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helps them
Really nothing happens it just moves!
The first segment on an earthworm is called the prostomium. It is a fleshy lobe that covers the mouth and helps the earthworm sense its environment.
The gizzard.
Well you put it onto the floor and wait till it moves and the part that moves first is the head.