hormones serve as chemical messengers between cells, tissues, and organs, and others communicate signals between biochemical systems within a single cell. Saturated and Unsaturated Fats • Saturated fats are solid at room temperature, while unsaturated fats are liquid at room temperature. Saturated fats have no double bond between molecules, which means there are no gaps and the fat is saturated with hydrogen molecules. On the other hand, unsaturated fats have double bonds, which break up…
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