Excretion in cockroach takes place by

Excretion is

Excretion is

Excretion in most Annelids take place by

The excretion in cockroach is said to be

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

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

Explain excretion in cockroach.

In the absence of a respiratory pigment, how exchange of gases in the cockroach takes place?