GED Science Practice 2025 - Free GED Science Practice Questions and Study Guide

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What is the term for a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth?

Salinity

Saliva

Saliva refers to the clear liquid produced by salivary glands in the mouth. This fluid plays a crucial role in the process of digestion, as it contains enzymes that begin breaking down food as soon as it enters the mouth. Saliva also helps moisten food, making it easier to chew and swallow, and contains antibacterial compounds that help protect the mouth and teeth from harmful bacteria.

The term salinity pertains to the concentration of salts in water, which does not relate to the liquid produced in the mouth. Runoff refers to water that flows over land and is typically associated with the movement of water in the environment, not bodily fluids. The Rh factor is a classification related to blood types and does not pertain to saliva or its functions. Therefore, saliva is the only term that accurately describes the liquid secreted by the glands in the mouth.

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Runoff

Rh factor

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