Brunner's glands found in the Duodenum. It secretes a mucus-rich alkaline fluid composed of mucin which protects the duodenum wall from the acid chyme of the stomach.
Diatoms are groups of photosynthetic microalgae found in the soils, waterways, and oceans around the world. The cell wall of these diatoms is made of silica. Due to which dead diatoms sink to the ocean floor and form large […]
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