Very similar organisms would have to compete with each other for the resource in question and inevitably one species would prove to be the superior competitor.
(Very similar organisms; to compete; with each other; for the resource in question) (inevitably one species; would prove; ) (inevitably one species; to be; the superior competitor)
Very similar organisms inevitably one species inevitably one species
to compete would prove to be
with each other for the resource in question
the superior competitor