State the functions of each of the following: dna, enzyme, fat, sugar. classify each of them into the group of organic compounds to which they belong.

DNA are nucleic acids and serve to hold genetic information.
Enzymes are proteins and speed up chemical reactions, i.e. are catalysts.
Fats are lipids and store energy.
Sugars are carbohydrates and also store energy.

Answer/Explanation:

=> The first arrow linking the sun and the plants represents transfer of RADIANT energy. The sun through its sunlight radiation provides energy for autotrophs such as plants to manufacture their food.

=> The second arrow from plants to rodent represents transfer of CHEMICAL energy. The chemical energy that is manufactured and stored between the molecules of the plant as food, is transferred to rodents as primary consumers.

=> Third and fourth arrow from the rodent to owl, and from the rodent to the wolf both represents CHEMICAL energy transfer.

=> Fifth arrow from the wolf to the surroundings show heat loss during metabolic processes in the wolf's body which represents THERMAL energy transfer from the wolf to the environment.

=> The width arrow from the wolf to decomposers also show THERMAL energy transfer as the wolf dies and decay, Hera is released.