The structure of the ear that conducts sound waves to the middle ear is the oval window.
<span>awake and relaxed with their eyes closed.
The frequency of 10 Hz is right in the middle of the alpha band of 7.5 to 12.5 Hz. Alpha waves are generally detected if the subject is awake and relaxed with their eyes closed. They drop in amplitude when the subject opens their eyes.</span>
The purpose of saliva serves in digestion is to breaks down complex carbohydrates. The correct option is (A).
<h3>What is saliva?</h3>
Saliva is a transparent liquid secreted by glands present in the mouth. Saliva is an important secretion for the digestion of food in the mouth.
It is made up of water and many digestive enzymes are present in the saliva, which help in digestion of complex carbohydrate like starch.
Thus, the correct option is A) breaks down complex carbohydrates.
Learn more about saliva
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The answer to your question is called force.
