1. Tardigrade
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  4. The ventral surface of the body of earthworm is distinguished by

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Q. The ventral surface of the body of earthworm is distinguished by

Structural Organisation in Animals

Solution:

The ventral and dorsal surface of earthworm can be distinguished morphologically. The ventral surface is marked by the presence of genital pores. The dorsal surface of the body is marked by a dark median mid-dorsal line, which appears due to the presence of dorsal blood vessels along the longitudinal axis of the body.