Excretory organs of different animals are given below. Choose correctly and write in the space provided.
a. ___________, b. __________, c. ____________ d. ___________, e. ___________, f. ________,
a. Balanoglossus – Proboscis gland
b. Leech – Nephridia
c. Locust – Malpighian tubule
d. Liver fluke – Flame cells
e. Sea urchin – Absent
f. Pila – Metanephrida