Which of the following organ acts as an active excretory organ in female cockroach during copulation?
1. Uricose gland
2. Malphigian tubules
4. All of these
Malpighian tubules are attached at the junctions of midgut and hindgut. Each tubule is lined by glandular and ciliated cells. They absorb nitrogenous wastes and convert them into uric acid, which is let into the hind gut and excreted out through the anus along with the feces