Question

Branchial respiration is found in which of these animals - 
1. Prawn and cyclopes
2. Spider and cyclopes
3. Clorias and pavo
4. Fishes and Icthyophis

Answer 1

Correct Answer - Option 1 : Prawn and cyclopes

Concept-

The process of exchange of O₂ from the atmosphere with CO₂ produced by the cells is called breathing, commonly known as respiration.

Respiratory Organs	Examples
General body surface	Sponges, Coelenterates, Flatworms
Moist cuticle	Earthworm, Frogs
Tracheal tubes	Insects
Gills	Aquatic arthropods, Molluscs, Fishes
Lungs	Reptiles, Birds, Mammals

Explanation-

• A Gill is a respiratory organ found in many aquatic animals.
• Gill extracts dissolved oxygen from water and excretes carbon dioxide. 
• Branchia is the zoologists' name for gills.
• Respiration over the gills is called Branchial respiration. 

Prawn and cyclopes are crustaceans that belong to the phylum Arthropoda in which respiration occurs through gills called Branchial respiration.

• Cutaneous respiration takes place in earthworms.
• The gas exchange that occurs via the alveoli in the lungs is called pulmonary respiration. Examples are birds and mammals.