Examlex
Use the following table to calculate the expected frequencies.
Melanin
A pigment produced by melanocytes in the skin, hair, and eyes, responsible for coloration and protection against ultraviolet (UV) light damage.
Oxygen
A chemical element (O) essential for most forms of life on Earth, vital for cellular respiration in organisms.
Friction
The resistance encountered when one object is moved in contact with another.
Pressure
The force exerted per unit area on the surface of an object, often measured in atmospheres, Pascals, or mmHg.
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