What term denotes the organisms getting their food from others?

The term that denotes organisms getting their food from others is **heterotrophs**. Heterotrophs are organisms that cannot produce their own food and instead obtain organic carbon and energy by consuming other organisms or their organic products. They rely on autotrophs (such as plants or algae) or other heterotrophs for sustenance.

Heterotrophs can be further categorized based on how they obtain their food:

1. Herbivores: Heterotrophs that primarily feed on plants or algae.
2. Carnivores: Heterotrophs that primarily feed on other animals.
3. Omnivores: Heterotrophs that consume both plant and animal matter.
4. Detritivores: Heterotrophs that feed on detritus (dead organic matter) and decompose it into simpler organic compounds.
5. Parasites: Heterotrophs that live on or in other organisms (hosts) and obtain nutrients at the expense of the host’s health.

Heterotrophs play a crucial role in ecosystems by participating in food webs and nutrient cycling, ultimately deriving their energy and nutrients from the primary producers (autotrophs) or other consumers.