Parasitic, Symbiotic, and ?????

Ben Nguyen benn686 at
Wed May 14 11:52:53 EST 2003

I know a parasitic relationship is where an organism is a drain on the
resources of the host.

A symbiotic relationship is where both benefit mutually.

But isnt there a term that describes when one organism uses another but it does
not affect the host in any way??

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