Question

Different types of excretory structures and animals are given below. Match them appropriately and mark the correct answer:

$\begin{array}{cccc}& \text{Excretory Structure / Organ}& & \text{Animals}\\ \text{A}& \text{Protonephridia}& 1& \text{Prawn}\\ \text{B}& \text{Nephridia}& 2& \text{Cockroach}\\ \text{C}& \text{Malpighian tubules}& 3& \text{Earthworm}\\ \text{D}& \text{Green gland}& 4& \text{Flatworms}\end{array}$

• A. A-4, B-3, C-2, D-1
• B. A-2, B-3, C-1, D-4
• C. A-4, B-3, C-1, D-2
• D. A-1, B-3, C-2, D-4

Answer 1

The correct option is A A-4, B-3, C-2, D-1

1. The excretory structures of prawn are green glands or antennal glands.
2. The excretory structures of cockroach are malpighian tubules.
3. The excretory structures of earthworm are nephridia.
4. Flatworms have protonephridia or flame cells that help in excretion.