The study of a living being is called biology.
The correct answer is B.
The process of conversion of a large molecule into a smaller molecule with the help of an enzyme is called digestion. The enzyme converts the organic and complex molecules to the simpler molecule which helps in absorption and later on is used up to form ATP.
According to the question, the larger molecule which is an organic molecule is breakdown into smaller molecules.
Hence, the correct answer is B that is an organic molecule.
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Warm air rises and takes heat with it; eventually it cools and sinks.
