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Pseudomonas and Bacillus are able to reduce nitrates to nitrogen.
Scapula
A thin, three-sided bone situated in the upper back, often referred to as the shoulder blade.
Frontal Sinus
Air-filled cavities in the skull that are located above the eyes in the frontal bone.
Ethmoidal Sinus
Air cells within the ethmoid bone, part of the paranasal sinuses, located between the nose and the eyes.
Maxillary Sinus
Air-filled cavities located within the bone of the upper jaw, part of the paranasal sinuses.
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