But to-day we know, that this faculty of selecting their special food--of assimilating the useful and rejecting the useless and the harmful--is common to all the unicellular organisms.
(we; know; T:to-day) Context(we know,List([11, 18))):(this faculty of selecting their special food--of assimilating the useful and rejecting the useless and the harmful; is; common to all the unicellular organisms)
we know,List([11, 18))
we this faculty of selecting their special food--of assimilating the useful and rejecting the useless and the harmful
know is
T:to-day
common to all the unicellular organisms