Biology · Kingdom Animalia

Leech has no locomotory organs.

Setae are bristle-like structures used for locomotion in earthworms, not leeches.

Chaetae, also known as setae, serve as locomotory structures in earthworms, but are absent in leeches.

Parapodia are paired appendages found in some polychaete annelids, not in leeches.

Leeches move using suckers at both ends of their body, not specialized locomotory organs like setae or parapodia.