Compare the human roundworm and the earthworm.

Ascaris is a representative of the Roundworm type, and the earthworm is a representative of the Ringworm type.
Accordingly, the body of annelids is segmented, and roundworms have no segmentation.
In roundworm they are of the circulatory system, and in earthworm they are. These animals play different roles in nature.
Ascaris is a human parasite and earthworm is an animal that lives in soil.



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