Which one of the following is enclosing the tympanum in mammals?

The hair cells present in the organ of Corti of the inner ear are located on the:

Given below is a diagrammatic cross-section of a single loop of the human cochlea. Which one of the following options correctly represents the names of three different parts?

Otoliths are $CaCO_3$ particles found in the.....

In mammals,the Organ of Corti is located in the .......

In mammals, the middle ear and inner ear are enclosed by which of the following bones?