2007-10-25 13:54:03 · 5 answers · asked by Baby Gurl 2 in Science & Mathematics ➔ Biology
A parasite is an organism that lives in or on another organism. It lives in a symbiotic relationship in which the parasite gains at the expense of the host organism.
2007-10-25 13:59:56 · answer #1 · answered by anion 3 · 1⤊ 0⤋
Usually organisms living that close together will be symbiotes of some kind. What kind it is depends on how each of the organisms is affected by the relationship - for example, if you had a tapeworm, it'd be a parasitic relationship, because the tapeworm feeds off of you, potentially at the expense of your health. On the other end of the spectrum, you have organelles like mitochondria, which are reputed to have once been separate organisms entirely before they were "absorbed" by our ancestors. If that's the case, then the relationship between mitochondria and humans is almost certainly mutualistic. So yep, it happens all the time!
2007-10-25 14:28:46 · answer #2 · answered by Anonymous · 1⤊ 0⤋
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RE:
An organism living in or on another organism.?
2015-08-24 21:23:46 · answer #3 · answered by Sarina 1 · 0⤊ 0⤋
These are known as parasites, They survive by using a host, often living off the host, sometimes at the hosts expense, however the parasite may have problems if it kills the host, in likely hood parasites will maintain its own life by maintaining the life of the host. A parasite feeds from the host, if the host dies the parasite has 2 options, find another host or die, in most cases finding another host is almost impossible, so keeping the current host long enough to reproduce and see it through its own life cycle is sufficient.
any good?
2007-10-25 14:23:59 · answer #4 · answered by David P 5 · 0⤊ 0⤋
These two are symbionts.
Close relationships between organisms are one of three classes of symbiosis. (Symbiosis means living together.)
In mutualism, both species benefit as the lichen. The symbionts, fungus and alga, provide for each other to their mutual benefit.
In parasitism one species benefits at the expense of the other. The symbionts, roundworms (Ascaris lumbricoides) and humans, where the worm shelters within the human stealing nutrients.
In commensalism, one species benefits and the other remains unaffected. Barnacles and whales live in a commensal relationship when barnacle live on the whale's back.
2007-10-25 14:21:13 · answer #5 · answered by gardengallivant 7 · 0⤊ 0⤋
It is called Parastie
2013-09-24 16:55:16 · answer #6 · answered by EMa Da 2 · 0⤊ 0⤋
Well, depending on what it is, you could call it a parasite...
2007-10-25 13:59:28 · answer #7 · answered by Ayanami Z 2 · 0⤊ 0⤋
parasites.
2007-10-25 14:07:36 · answer #8 · answered by Bhavin P 2 · 0⤊ 0⤋