Microorganisms that infect the middle ear cavity most frequently come from the pharynx.
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What is pharynx?</h3>
- A hollow tube called the pharynx extends from the back of the nose down the neck and finishes at the top of the trachea and esophagus. 
- The nasopharynx, oropharynx, and hypopharynx are the three components of the pharynx.
- The pharynx, sometimes known as the throat, is a component of the digestive and respiratory systems. 
- It transports food, liquid, and air from the mouth and nose downward. 
- Common infections like tonsillitis and a sore throat can spread to the pharynx.
- The throat is a muscular tube that resembles a ring and serves as the conduit for liquids, food, and air. 
- It connects the mouth and nose to the breathing passages and the esophagus and is situated behind the nose and mouth.
Learn more about pharynx here:
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Eukaryotic cells have the ability to absorb other cells by phagocytosis. 
<span>Characterized by the presence of the nucleus, formed by a rope DNA (the free ends) surrounded by two layers reticulum (nuclear envelope). Eukaryotic DNA forms a complex with a large number of proteins</span>
        
                    
             
        
        
        
Natural springs hope this helps :D