Question

Which of the following phyla have nephridia as an excretory structure?

• A. Arthropods
• B. Annelids
• C. Platyhelminthes
• D. Ctenophora

Answer 1

Answer:

B. Annelids

• Nephridia are the tubular excretory structures of earthworms and other annelids.

• Nephridia help to remove nitrogenous wastes and maintain a fluid and ionic balance.