1
Question
The tympanum is absent is
The tympanum is absent is
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Solution
The correct option is D All the fishes
The tympanum is the eardrum. It is generally a thin membrane by which external ear is separated from the middle ear. In simple words, it's a kind of hearing structure. The tympanum is absent in fishes.- Scoliodon is known as the dogfish because it has a great sense of smell.
- Catfish is the fish that has long whiskers and thus, their mouth resembles the mouth of a cat.
- Bony fishes belong to class Osteichthyes. These fishes have cartilaginous endoskeleton in the embryonic stage which is replaced by bones in adult forms.
Hence, tympanum is absent in all kind of fishes. Thus, the correct answer is 'All the fishes'.
The tympanum is the eardrum. It is generally a thin membrane by which external ear is separated from the middle ear. In simple words, it's a kind of hearing structure. The tympanum is absent in fishes.
- Scoliodon is known as the dogfish because it has a great sense of smell.
- Catfish is the fish that has long whiskers and thus, their mouth resembles the mouth of a cat.
- Bony fishes belong to class Osteichthyes. These fishes have cartilaginous endoskeleton in the embryonic stage which is replaced by bones in adult forms.
Hence, tympanum is absent in all kind of fishes. Thus, the correct answer is 'All the fishes'.
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