Here's why:
* Heterotrophs are diverse: Heterotrophs include a vast array of organisms, from microscopic bacteria and fungi to giant whales and humans. Their dietary needs vary greatly.
* Plant-based diets: Some heterotrophs, like herbivores, are entirely reliant on plants for food. Others, like omnivores, consume both plants and animals.
* Carnivores: Carnivores, however, do not consume plants. They obtain their nutrients by eating other animals.
* Decomposers: Decomposers (like bacteria and fungi) get their nutrients from breaking down dead organisms, including plants and animals.
Therefore, while plants are a vital food source for many heterotrophs, they are not the sole source of sustenance for all.
