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Only one side of the Moon faces Earth.Is this because the Moon spins about its axis,or doesn't spin about its axis? Defend your answer.
Mucous Membranes
Moist tissue layers that line certain internal organs and body cavities, producing mucus to protect and lubricate surfaces.
Pulse Oximetry
A non-invasive test that measures the oxygen saturation level in the blood by using a device that clips onto a fingertip.
Lavage
A medical procedure involving the washing out of an organ or body cavity, such as the stomach, to remove toxins or foreign substances.
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