Question

In insects, Malpighian tubules drain materials directly from the

• A. Gut
• B. Haemocoel
• C. Spider
• D. Jelly fish

Answer 1

The correct option is B Haemocoel

Malpighian tubule, in insects, any of the excretory organs that lie in the abdominal body cavity and empty into the junction between midgut and hindgut. Malpighian tubule Any of the organs that are involved in the excretion of nitrogenous waste in insects, arachnids, and centipedes. They lie in the haemocoel. It drains materials from haemocoel. In insects Malpighian tubules open into the intestine. They selectively extract from the blood uric acid, which together with water and salts is deposited into the hindgut and excreted in the faeces. Some reabsorption of water and salts can occur in the tubule itself but most reabsorption occurs in the hindgut

So, the correct answer is 'Haemocoel'