Parasitic nutrition is heterotrophic nutrition where a parasitic organism lives on the body surface or inside the body of another type of organism (a host) and gets nutrition directly from the body of the host. Since these parasites derive nourishment from their host, this symbiotic interaction is often described as harmful to the host.

Saprotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed organic matter.

The organism feeds on dead matter i.e fungi

A carnivore is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging