Question

Excretion in cockroach takes place by

(a) nephridium

(b) parotid gland

(c) coxal glands

(d) Malpighian tubules

Answer 1

The correct option is: (d) Malpighian tubules

Explanation:

In cockroach, from the junction of midgut and hindgut arise 80 to 90 very narrow, thread-like, yellow-coloured blind tubules projecting freely into haemocoel. These are called Malpighian tubules and are excretory in function.