Selenium is considered one of the strong and necessary minerals to regulate some processes in the body, as it plays an important role in som...
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Where mucus is secreted in different places of the human body, and among these places it is excreted in the respiratory system, where this m...
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Honey is a sweet liquid that tastes in various colors, made by bees using the nectar of flowers, where the bees collect the nectar of flower...
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