What statements best explains why all animals need food in order to live?

All animals need food to obtain energy, which is essential for vital processes such as growth, reproduction, and maintaining bodily functions. Food provides the necessary nutrients, including proteins, fats, and carbohydrates, that support cellular activities and overall health. Additionally, animals rely on food to support their immune systems and to repair and regenerate tissues. Without sufficient food intake, animals cannot sustain their life processes and may eventually perish.