Question

Malpighian tubes are excretory organ in

• A. earthworm
• B. cockroach
• C. Flat worm
• D. none of these

Answer 1

The correct option is B cockroach

Excretory organs are the organs that help in the process of removal of waste from the body, they vary depending upon the organism.

• Earthworms have nephridia as an excretory organ, it is a coiled structure.
  
• House fly comes under insects, they have Malpighian tubules or green cells for the process of excretion and osmoregulation.
  
• Flatworms have special types of excretory organs called flame cells.
  

So, the correct option is 'Housefly'.