Locomotion in earthworm

• Short and bristle-like structures called setae are present on the underside of an earthworm's body.
• Earthworms have a fluid-filled central body cavity or coelom surrounded by circular and longitudinal muscles in the body wall.
• Locomotion in earthworms involves waves of circular muscle contraction followed by waves of longitudinal muscle contraction.
• Earthworms also use their setae, tiny bristle-like structures on their body, to grip the soil and anchor themselves while moving.
• Earthworms move by contracting their muscles, which creates waves of contractions that push against the ground.
• Earthworms use a combination of circular and longitudinal muscles to move.
• Earthworms use their setae, bristle-like structures on their body, to anchor themselves and grip the soil while moving.
• Earthworms move by alternating contractions of circular and longitudinal muscles, which create waves of movement along their body.