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Annelids are worms with bodies made up of many segments or rings. An example of an annelid is the earthworm. Some annelids have a head region (sometimes antenae as well), while others are harder to tell which end is the head. Annelids use chaetae for locomotion - these are tiny hairs which grip the surface.
Nematodes are worms. However, unlike annelids, their bodies are not segmented and they have no obvious head. They are long, white and thin and have no legs. They also never have chaetae - another difference from annelids. Many live in the soil, while others live in digestive systems of animals, like parasites.
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Nematodes are worms. However, unlike annelids, their bodies are not segmented and they have no obvious head. They are long, white and thin and have no legs. They also never have chaetae - another difference from annelids. Many live in the soil, while others live in digestive systems of animals, like parasites.
Answer:
Nematodes Molluscs
Longitudinal muscles
Muscular foot
Pseudocoelomates
Coelomates
never has shell some has shell