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Q: Which of the following is an excretory organ of cockroach?
  • A. Malpighian Tubules
  • B. Nephridia
  • C. Coxal Gland
  • D. Green Gland
Correct Answer: Option A - Cockroaches are insects of the order Blattodea and phylum Arthropoda. About 30 cockroach species out of 4600 are associated with human habitats. About five species are well known as pests. Malpighian Tubules constitutes the excretory organs of cockroach and other insects. Nephridia are the most generally found excretory organs in earthworms. Flame cells are the platyhelminthes excretory organs.
A. Cockroaches are insects of the order Blattodea and phylum Arthropoda. About 30 cockroach species out of 4600 are associated with human habitats. About five species are well known as pests. Malpighian Tubules constitutes the excretory organs of cockroach and other insects. Nephridia are the most generally found excretory organs in earthworms. Flame cells are the platyhelminthes excretory organs.

Explanations:

Cockroaches are insects of the order Blattodea and phylum Arthropoda. About 30 cockroach species out of 4600 are associated with human habitats. About five species are well known as pests. Malpighian Tubules constitutes the excretory organs of cockroach and other insects. Nephridia are the most generally found excretory organs in earthworms. Flame cells are the platyhelminthes excretory organs.