Question

Discuss the accessary respiratory organ for air breatting in fishes​

Answer 1

Answer:

Explanation:

Many embryos and larvae of fishes respire through the skin before the emergence of the gills. The median fin fold of many larval fishes is supplied with numerous blood vessels and helps in breathing. The highly vascular opercular fold of Sturgeon and many Catfishes serves as the accessory respiratory structure.

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