It's called natural selection. Basically, if there's a lion and there's a cat, the lion is going to compete with the cat, and the lion will take all the prey, and perhaps even eat the cat (CANNIBALISM!?!?), thus eventually making the cat extinct. I kept thinking of the Halo: Reach announcer: "Extermination!". :D Natural selection. It's why we have the internet while cats have catnip and litter boxes.
An organism that kills and eats all or part of another organism is called a carnivore.
That's called a parasite.
A parasite is an organisms that lives in or on another organism to obtain food directly.
This is called parasitism.
The term used for an organism living in or on another depends on the nature of the relationship.- If the relationship is mutually beneficial (mutalism) then the organism can be called a symbiont.- If the relationship does not benefit the host, the organism can be called a parasite.Parasites can be endoparasites, which live inside the host, or ectoparasites, which live on the host.Some biologists use the term symbiont for any organism in a close interaction with another. This would mean parasites could also be called symbionts.
An organism that eats another organism is called a consumer.
An organism that kills and eats all or part of another organism is called a carnivore.
parasite
If the organism is eating another its a carnivore.
It is called predation when one organism consumes another organism for energy.
These are called predators.
When an organism lives off of another organism, it is called parasitism. The organism benefiting is the parasite, while the one being harmed is the host.
eating
A Parasite
Parasite.
Any organism that eats another organism is called a consumer.
An organism that eats another organism is called a consumer.