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------------------------------------------------ Suction the mouth and nose. (MR SOPA: Mouth, Reposition, Suction, Open the Airway, Positive Pressure Ventilation, Advanced Airway)

Answer :

Final answer:

The suction function of the mouth and nose in biology and its various applications

Explanation:

The subject of this question is Biology. The question is asking about the suction function of the mouth and nose, specifically using a tool called the Modified Robert's Oral Pharyngeal Airway (MR OPA).

In biology, the mouth and nose play important roles in respiration and digestion. The suction action of the mouth and nose helps in breathing, swallowing, and extracting nutrients from food.

Suction is used in various biological processes, for example, when sucking on a straw, compressing air in the mouth while blowing, or picking up samples with a grabber.