Ignore them and walk away
The digestive system breaks down (catabolizes) food into its nutrient parts. The circulatory system brings those nutrients to the cells where they are needed. One of the main requirements of the cells is for energy, which the body manufactures by combing nutrients (especially carbohydrates, glucose, glycogen, and glycogon) with oxygen. The body takes in oxygen via the respiratory system and distributes it via the circulatory system.
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Answer:
The correct answer is a. scurvy
Explanation:
Scurvy is a deficiency disease which is caused by the deficiency of vitamin C. James Lind in the 18th century discovered that citrus fruit prevents scurvy and can help in curing the scurvy. Scurvy was the main cause of death in sailors during long-distance sea travells.
Citrus fruits have plenty of vitamin C which is required for in variety of biosynthetic pathway and lack of vitamin-C cause weakness, gum disease, anemia, and skin problems. So eating citrus fruits prevents scurvy.