Milady Esthetics State Board Complete Practice Test 2026

Question: 1 / 400

All living organisms, whether plant or animal, contain what element?

Nitrogen

Oxygen

Carbon

All living organisms, regardless of being plant or animal, contain carbon as a fundamental element. Carbon is unique in its ability to form stable bonds with a variety of other elements, including itself, which enables the complex molecular structures that make up living organisms. It serves as a primary building block of life, found in key organic molecules such as carbohydrates, proteins, lipids, and nucleic acids. This property of carbon to create diverse and complex compounds is essential for biological processes and structures, making it indispensable to all living entities. The presence of carbon allows for the versatility and functionality required in biochemistry, facilitating life as we know it.

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Hydrogen

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