Malpighian tubules remove excretory products from

A. Hemolymph

B. Alimentary canal

C. Both A and B

D. None of the above

Malpighian tubules are excretory organs in insects that help remove waste from the body by producing urine and solid nitrogenous compounds. They are tube-like structures that extract nitrogenous wastes along with water from the hemolymph and release them outside the body. Examples of insects with Malpighian tubules include cockroaches, grasshoppers, and other insects.

These tubules are narrow tubes located in the posterior region of the arthropod digestive system. Each tubule has a separate cell layer, closed at the distal end, while the proximal end opens into the junction of the midgut and hindgut. The tubules absorb water, solutes, and waste from the hemolymph, and excrete it in the form of solid nitrogenous compounds.

In cockroaches, there are about 150 Malpighian tubules that open at the midgut-hindgut junction. They play a vital role in excretion by maintaining water and nitrogen balance in the body.

Correct answer: Option A.