The absorption of nutrients in the small intestine is controlled by the digestive system. Excess nutrients are filtered out from kidney into urine through the excretory system. However, both these processes are regulated by the endocrine system.
The story tells of a woman reacting to her husband's death. She must consider many years of a relationship, and their time together is not really the story of an hour.
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Foreshadowing means to give hints of the future. Like in "A Tale of two cities" by Charles Dickens, a man writes "Blood" on the wall, that word represents that there's probably a war coming.
