All animals must obtain ________ from outside sources.

Question

Quizplus · Accepted Answer

All animals require fuel to power their body activities, which is obtained from outside sources such as food. Preformed ATP is not obtained from outside sources, but rather is created within the body. Enzymes are important for biochemical reactions within the body, but they are not a source of fuel. Chyme is a mixture of partially digested food and digestive juices, and is not a source of energy for the body.

All Animals Must Obtain ________ from Outside Sources