Which of the following is not present in fish?
Correct answer: A. middle ear
- A. middle ear
- B. internal ear
- C. gills
- D. fins
Explanation
Middle ear: Fish do not possess a middle ear like mammals. Instead, they have a unique structure called the swim bladder, which is used for buoyancy control and sound detection. The swim bladder is not directly involved in hearing like the middle ear in mammals.In summary, while fish possess internal ears, gills, and fins, they do not have a middle ear as found in mammals.
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