( ( Multiple fission ) ( ( ( is also ) ( known ( among rhizopodans ) ) ) . ) )
(ROOT (S (NP (JJ Multiple) (NN fission)) (VP (VBZ is) (ADVP (RB also)) (VP (VBN known) (PP (IN among) (NP (NNS rhizopodans))))) (. .)))
Multiple fission is also known among rhizopodans.
(ROOT (S (NP (JJ Multiple) (NN fission)) (VP (VBZ is) (ADVP (RBR more) (RB often)) (VP (VBN observed) (PP (IN among) (NP (NNS protists))))) (. .)))