AP BIOLOGY

Detailed explanation-1: -The correct answer is option 4, i.e. Carbon. An organic compound is any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Detailed explanation-2: -This means that all organic compounds have in common the presence of carbon atoms and hydrogen atoms. In addition, different organic compounds may contain oxygen, nitrogen, phosphorous, and other elements.

Detailed explanation-3: -Answer and Explanation: Carbon is the only element that is found in all organic compounds.

Detailed explanation-4: -Carbon is the main element in organic compounds. Carbon can form stable bonds with many elements, including itself. There are four major types of organic compounds: carbohydrates, lipids, proteins, and nu cleic acid s.

Detailed explanation-5: -Hydrocarbon is one example of an organic compound and it is only made up of carbon and hydrogen atoms. From the given choices, the compound CH4 C H 4 is the only organic compound since it is made up of one carbon atom covalently bonded to 4 hydrogen atoms.