Because the foods eaten by animals are often composed largely of macromolecules, this requires the animals to have mechanisms for

Question

Quizplus · Accepted Answer

Macromolecules are large molecules made up of smaller subunits. To access the nutrients within these macromolecules, animals need to break them down into their constituent subunits through enzymatic hydrolysis. This allows the animal to absorb and utilize the individual subunits for their own metabolic processes. Elimination (A) occurs after nutrients have been extracted from food, while dehydration synthesis (B) refers to the process of building up macromolecules from smaller subunits, which is the opposite process of what is needed to extract nutrients. Regurgitation (D) refers to the process of bringing up partially digested food from the stomach, which is not necessarily related to breaking down macromolecules. Demineralization (E) refers to the loss of minerals from bones or teeth, which is also not related to the breakdown of macromolecules in food.

Because the Foods Eaten by Animals Are Often Composed Largely