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Skunks, which are noted for their ability to spray would-be predators with a foul-smelling chemical, typically have a coat that is mostly black with contrasting white stripes or spots. This color pattern is an example of
Macromolecule
Large molecules necessary for life, including proteins, nucleic acids, carbohydrates, and lipids.
Compound
A substance formed from two or more elements chemically united in fixed proportions.
Atom
The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, and electrons orbiting the nucleus.
PH
A scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 (most acidic) to 14 (most basic).
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