How many types of nephridia are found in earthworm based on their location?
Mention briefly about the circulatory system of earthworm
Distinguish between the following: Septal nephridium and pharyngeal nephridium
Draw a labelled diagram of the reproductive organs of an earthworm
Answer the following:
What is the function of nephridia?
Answer in one word or one line.
How many spermathecae are found in earthworm?