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

In earthworms,the pharyngeal nephridia are located in which segments?

Which of the following types of nephridia are not found in earthworms?

The colour of the body in earthworm is brown due to the presence of

Identify the correct terms for the following analogy:
$(i)$ Excretory organ in cockroach : Malpighian tubules :: In earthworm : ...........
(ii) Scientific name of cockroach : Periplaneta americana :: Scientific name of earthworm : ...........

To which class does the earthworm belong?