AP BIOLOGY

Detailed explanation-1: -Carbon atoms covalently bonded to each other. (Ans C). Explanation: Organic compounds are different from inorganic compounds by the presence of carbon atom attached with other carbon atom or hydrogen atom.

Detailed explanation-2: -The most apparent distinguishing feature of organic compounds is the presence of carbon-hydrogen (C-H) bonds. Inorganic molecules, on the other hand, lack these C-H bonds on their structure.

Detailed explanation-3: -An inorganic compound is a chemical compound lacking both carbon-carbon (C-C) and carbon-hydrogen (C-H) covalent bonds. A chemical compound is made up of two or more elements that are chemically bonded together.

Detailed explanation-4: -Chemical compounds can be classified on the basis of the presence of carbon. Organic compounds contain the element carbon and are generally (not always) produced by living organisms. Inorganic compounds do not contain the element carbon and generally have non-living sources.

Detailed explanation-5: -Almost all the bonds involved in organic compounds are covalent bonds. Covalent bonds can be non-polar or polar. For covalent bonds formed between two identical atoms, the electron pairs are shared equally between the two nuclei.