symbiotic

adj. of or pertaining to symbiosis, existing in a state of symbiosis (Biology)

The term symbiosis (from the Greek: συμ, sym, "with"; and βίοσίς, biosis, "living") can be used to describe various degrees of close relationship between organisms of different species. The term was first used in 1879 by the German mycologist, Heinrich Anton de Bary, who defined it as: "the living together of unlike organisms".
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Adjective
1. used of organisms (especially of different species) living together but not necessarily in a relationship beneficial to each
(similar) dependent
(classification) biology, biological science

a biological relationship in which two or more dissimilar organisms mutually benefit by living in close association with each other.

Synonyms and related words:
accompanying, accordant, affirmative, agreeable, agreeing, answerable, associate, associated, at one, at one with, coacting, coactive, coadjutant, coadjuvant, coadunate, coefficient, coexistent, coexisting, coherent, coincident, coinciding, collaborative, collective, collectivist, collectivistic, collusive, combined, combining, commensal, commensurate, common, communal, communalist, communalistic, communist, communistic, communitarian, compatible, concerted, concomitant, concordant, concurrent, concurring, conformable, congenial, congruent, congruous, conjoint, conniving, consentaneous, consentient, consilient, consistent, consonant, conspiratorial, cooperant, cooperating, cooperative, coordinate, correspondent, corresponding, coworking, ecological, ecotopic, ecumenic, en rapport, equivalent, fellow, harmonious, harmonized, in accord, in agreement, in rapport, in sync, in synchronization, inaccordance, inharmony, joint, like-minded, meeting, mutual, noncompetitive, of a piece, of like mind, of one mind, on all fours, parasitic, positive, proportionate, reciprocal, reconcilable, saprophytic, self-consistent, synchronized, synchronous, synergetic, synergic, synergistic, unanimous, uncompetitive, uniform, unisonant, unisonous, united, uniting|