Which of these is an ear ossicle in frog

Options

A. Incus
B. Auricle
C. Malleus
D. Columella auris

Answer

### Step-by-Step Solution:

1. **Understanding Ear Ossicles**: Ear ossicles are small bones located in the middle ear that play a crucial role in the hearing process by transmitting sound vibrations from the outer ear to the inner ear.

2. **Identifying the Frog's Ear Ossicle**: In frogs, the ear ossicle is a structure that connects the tympanic membrane (eardrum) to the inner ear. This structure is essential for sound transmission.

3. **Comparing with Other Species**: The ear ossicle in frogs is homologous to the stapes (also known as the stirrup) in humans and the hyomandibular bone in fishes. This means that while they serve similar functions in sound transmission, they are derived from different evolutionary paths.

4. **Naming the Frog's Ear Ossicle**: The specific name of the ear ossicle in frogs is the "Columella auris." This name indicates its function and anatomical position.

5. **Eliminating Incorrect Options**: The question may provide multiple choices, but since the other options are likely to be human ear ossicles (like malleus, incus, or stapes), they cannot be correct answers for the frog's ear ossicle.

6. **Final Answer**: Therefore, the ear ossicle in frogs is known as "Columella auris."