What structure is attached to the oval window and transfers vibration of the tympanic membrane to the inner ear?

The correct answer will be-Stapes

Explanation:

The tympanic membrane is the membrane present in the outer structure of the ear which vibrates when it receives the sound vibrations from the outer world.

Inner to the tympanic brain lies three bones called incus, malleus and stapes. These bones are attached in a chain-like fashion convert the vibrations of the membrane to the mechanical vibrations of these bones.

Since the bone which fills the oval window and transfers the vibration to the inner ear is called stapes.

Thus, stapes is the correct answer.

i think its white blood cells

i hope this

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.