Biology
Draw a neat diagram of a fish and label the five kinds of fins, operculum and mouth. Answer the following questions :
- Name the phylum and the class to which fishes belong.
- What is the one advantage of their specific body shape ?
- Do they breathe through nostrils ? If not, mention the role of nostrils.
- Mention the breathing and locomotory structures in fishes.
- Give any two examples of fishes.
Classification of Animals
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Answer
Diagram of fish is given below —
Fishes belong to Class Pisces of Phylum Chordata.
Their streamlined body, which is narrow at both ends help reduce water resistance, allowing for more efficient and faster swimming.
Fishes do not breathe through nostrils, but through gills. Fish nostrils are used to detect chemicals in the water, aiding in finding food, identifying potential mates, and detecting danger.
Fishes breathe through the gills. The locomotory structures in fishes are their fins, which help in swimming.
Two examples of fishes are — Rohu and Catla.
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