Q. Assertion: Excretion in cockroach occurs by Malpighian tubules
Reason: Each Malpighian tubule is lined by non-ciliated columnar cells

 2321  219 Structural Organisation in Animals Report Error

Solution:

Excretion in cockroach is performed by Malpighian tubules. Each tubule is lined by glandular and ciliated cells. They absorb nitrogenous waste products and convert them into uric acid which is excreted out through the hindgut