Organisms that secure food by eating other organisms are called heterotrophs.

Here's a breakdown:

* Hetero means "other"

* Troph means "nourishment"

So, heterotrophs literally get their nourishment from "other" sources.

There are different types of heterotrophs, including:

* Herbivores: Eat plants

* Carnivores: Eat other animals

* Omnivores: Eat both plants and animals

* Scavengers: Eat dead animals

* Parasites: Live in or on another organism and obtain nutrients from it

Let me know if you have any other questions!