The first segment of the earthworm is called:

Which of the following is absent in the circulatory system of an earthworm?

In which segments is the clitellum present in an earthworm?

Which of the following parts is not present in an earthworm?

Which of the following animal's sensory system does not have eyes but does possess light and touch sensitive organs (receptor cells) to distinguish the light intensities and to feel the vibrations in the ground?

Explain the nephridia of an earthworm.