What is the operculum?

Answer 1

I hope you want to know about operculum present in a bony fish.

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Operculum is a movable bony flap: there are a pair of them in bony fishes, covering the gills on two sides of body. It helps in directing the water, flow over the gills which help in respiratory gas exchange.

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Answer 2

Daniel Arnold

The operculum is a structure found in various organisms, including fish, snails, and certain types of plants. It serves as a covering or lid for a body part or opening, such as the gill chamber in fish or the opening of a snail's shell. It can also refer to a flap of tissue covering the gills in some fish species.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.