Autotrophs are plants that make their food for nourishment. The raw nutrients and minerals that are procured are put into special cells. They create food through photosynthesis by absorbing the sunlight and transforms it into its energy production in the process of food conversion. Autotrophs are mostly known as producers, and Heterotrophs are animals that cannot make their food.
This situation includes mammals in the animal kingdom. Heterotrophs will have to either hunt for their food, eat other animals, and they may also eat plant life. Human beings are known as consumers, and we need external sources for our food. Since we cannot create our own food like plants, we consume food through the act of eating, digesting, and absorbing. It gives us energy and maintains health.