Answer:
prevents secretion of upper air passage
Explanation:
to prevent foods and drinks from falling down the airway which is called aspiration and may lead to pneumonia
Streams that flow beneath melting glaciers leave long ridges of layered sediments, known as Esker. Eskers are formed within ice-walled tunnels by streams which flowed within and under glaciers. They tended to form around the time of the glacial maximum when the glacier was slow and sluggish and after the retaining ice walls melted away, stream deposits remained as long winding ridges.
Numerous proteins and other substances are injected into the neurons.
- The blood-brain barrier functions effectively to protect the brain from common infections.
- Because of this, brain infections brought on by blood are incredibly rare. When they do occur, brain diseases are frequently severe and challenging to cure. Only a few anti-infection medicines can traverse the blood-brain barrier because antibodies are too large.
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The answer is D I'm 100% sure!