Examlex
Evaluate the expression without using a calculator.
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Melanin
A pigment found in most organisms, responsible for coloration of the skin, hair, and eyes, and protection against UV radiation.
Vitamin D
A fat-soluble vitamin essential for healthy bones and immune function, obtained from sunlight exposure, food, and supplements.
Lactose Intolerance
The inability to fully digest lactose, a sugar found in milk and dairy products, leading to digestive problems.
Adults Worldwide
The global population of individuals who have reached the age defined as adulthood by various social, legal, or cultural standards.
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