The body parts labeled in the diagram are the mouth, operculum, and fins respectively.
Parts of a fish
The image in the illustration is that of a body fish.
The part labeled 1 is the mouth.
The part labeled 2 is the operculum. It covers the gill of the fish.
The part labeled 3 are the fins. The fins include ventral, lateral, and an-al fins.
More on fishes can be found here: https://brainly.com/question/20594595
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