Question

Correct order of excretory organs in cockroach, earthworm and rabbit respectively is

• A. Skin, malpighian tubules, kidney
• B. Malpighian tubules, nephridia, kidney
• C. Nephridia, malpighian tubules, kidney
• D. Nephridia, kidney, green gland

Answer 1

Answer: (B)

Malpighian tubules, nephridia, kidney

The malpighian tubule system is a type of excretory and osmoregulatory system found in cockroach. Nephridia are the excretory organs of earthworm, which are of three types, namely, septal, integumentary and pharyngeal. Like other mammals, rabbits possess two kidneys. The kidneys are essential for filtering out toxins from the body and excreting them via the urinary system.