Sunday, September 18, 2016

symbiotic

In biology, symbiotic refers to any diverse organisms that live together, but in this case, the relationship is not necessarily beneficial to both. Parasites, for example, have a symbiotic relationship with their hosts, but only the parasite benefits.

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quid pro quo - a favour or advantage granted in return for something.

 quid pro quo /ˌkwɪd prəʊ ˈkwəʊ/ noun noun : quid pro quo ; plural noun : quid pro quos a favour or advantage granted in return for...