Examlex
Infrared light, though invisible, has many of the characteristics of visible light.
Nucleotides
The basic building blocks of nucleic acids (DNA and RNA), composed of a sugar, a phosphate group, and a nitrogenous base.
Lipids
A broad group of naturally occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins, and others, known for being a major source of energy.
Proteins
Large, complex molecules made up of amino acids that perform a vast array of functions within organisms, including structural support, transporting molecules, and catalyzing metabolic reactions.
Phylum
A taxonomic grouping of related, similar classes; a category beneath the kingdom and above the class.
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