Carnivores depend on other animals for matter and energy.
Ultimately all organisms depend on sunlight - plants use it for photosynthesis, consequently anything consuming plants relies on it indirectly and anything that then consumes those animals that eat the plants then (again) ultimately relies on the energy of the Sun.
Living organism depend on plants because of the plants capability to do photosynthesis. Photosynthesis is converting the sun energy into a glucose type sugar. Sugar is a type of energy that all living organisms need.
animals and plants
parasites
Living organisms that create their own food through photosynthesis, like plants and alge, are known as autotrophs. Organisms that depend on other organisms for energy, like Humans and other animals, are known as heterotrophs
This energy is stored in glucose. Plants synthesize many things using glucose energy. Other organisms consume plants basically
All living organisms, that are catagorized as consumers, depend on eating other organisms for energy, although, producers create their own energy from the abiotic features of an ecosystem.
herbivore
the sun, plants, animals, potentially everything produces energy for other organisms thru digestion or absorption.
Herbivores, carnivores, omnivores - in other words all organisms that are not plants.
By providing an energy source for them. The majority of heterotrophic organisms get their energy by eating photosynthetic organisms or indirectly, by eating things which themselves eat photosynthetic organisms.