* Lack of Chlorophyll: Unlike autotrophs (like plants), heterotrophs lack chlorophyll, the pigment necessary to capture sunlight energy and convert it into chemical energy (sugars).
* Energy Source: They rely on consuming other organisms (animals, plants, or other organic matter) to obtain the necessary energy and building blocks for their survival.
* Organic Compounds: Heterotrophs break down the organic compounds in food into simpler molecules through digestion, absorbing nutrients like carbohydrates, proteins, and fats. These nutrients provide energy and materials for growth, repair, and essential bodily functions.
In short: Heterotrophic organisms are like "consumers" in the food chain, depending on other organisms for their energy and nutritional needs. They must ingest food because they lack the ability to create their own energy through photosynthesis.
