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... a parasite.

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Q: A small organism that lives at the expense of some other plant or animal is?
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What lives on other organisms?

They are called symbiotic organisms. There are 4 basic forms of symbiosis: A "commensal" organism is one that lives in, on, or with another, and benefits in some way without affecting the other. (e.g. an orchid) A mutualistic organism is one that benefits and provides a benefit. (e.g. gut bacteria) An "amensal" organism does not benefit, but does harm. (e.g. accidental predation) A "parasite" (parasitic organism) is a plant or animal that lives on or within another living organism at the expense of that organism. (e.g. toxic bacteria)


What animal gets nutrients from eating other animals?

A parasite is an animal that lives in or on another organism (its host) and benefits by deriving nutrients from the host.


Organism that lives inside or on another organism?

parasite is the organism that lives on other organism without any benefit to the host.


What is an organism that lives in a other organism?

It is called a Parasite. (Ex:Tapeworm.)


A organism living in or on another organism?

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.


What is an animal that lives in other plants and animals?

an organism that lives of another without giving anything in return is called a parasite. For example, a tapeworm lives in animals and uses nutrients from the animals food, this does not benefit the animal. however, animals that use each other and get something out, or two organisms that need each other is called a sybiotic


What is a 'Habitat'?

A habitat is a place where organisms live that has every thing that organism needs. The official definition for the word habitat is "the natural home or environment of an animal, plant, or other organism."the area where an organism lives, including the biotic and abiotic factors that affect the organism.a habitat is where species lives. for example the polar bear live in Antarctica, a cold, ice, place not in a jungle


What situation in nature which one living thing depends on another living thing?

if it is a mutually beneficial relationship then it would be symbiosys (for example the bacteria in your gut which help you digest food), if one organism lives at the expense of the other, then that organism would be considered a parasite.


Is symbiotic relationship in which one organism benefits but the other is harmed?

*parasitism is where one animal is helped while other is harmed* commensalism is where one is helped and other is not really affected mutualism is where both animals are helped


What is a natural relationship in which one organism lives in or on another organism and benefits from the relationship while the other organism may be harmed?

A natural relationship in which one organism lives in or on another organism and benefits from the relationship while the other organism may be harmed is a parasitic relationship.


Is a tapeworm a parasite that lives in a host organism?

Yes it feeds of the things the other organism eats.


An organism other then human especially a mammal?

Animal