Which of the Following Is a Characteristic of Vitamin D

question 78

Multiple Choice

Which of the following is a characteristic of vitamin D nutrition?

• A)Vitamin D deficiency may be created by a calcium deficiency
• B)Only about one-half of the world's population relies on sunlight to maintain adequate vitamin D nutrition
• C)Prolonged exposure to sunlight degrades the vitamin D precursor in skin, thus preventing vitamin D toxicity
• D)In people living in northern U.S. cities, vitamin D stores from synthesis during the summer are usually sufficient to meet the needs during the winter
• E)Pigments in dark skins increase vitamin D synthesis.

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Aggregate Demand Curve

A curve that represents the total demand for goods and services in an economy at various price levels, assuming all other factors remain constant.

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Raw or unprocessed goods brought into a country from abroad for use in manufacturing or production.

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Gross Domestic Product adjusted for inflation, measuring the value of goods and services produced by an economy in a given year, expressed in base-year prices.