Special excretory organs are absent in

Correct Answer - Two or 50% B and D are correct A and C are incorrect

D) platyhelminthes

(C) Protozoa

(C) Metanephridia

Answer is (D) B and C

Malpighian tubules are excretory organs in Housefly

(A) Both a & b are true

Answer is (C) 1 and 2

Excretory OrgAnswer:  1. Lungs: Remove CO2 and also water vapour to a considerable extent. Volatile substances present in spices and other food stuff are excreted through lungs  2. Kidneys: Remove nitrogenous waste products...