( ( ( ( ( They ( ( are also ) ( ( a ( primary consumer ) ) ( of copepods ) ) ) ) , ) and ) ( research ( suggests ( that ( they ( may ( ( play ( a ( major role ) ) ) ( in ( ( balancing ( phytoplankton ecosystems ) ) ( by ( regulating ( copepod populations ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP They)) (VP (VBP are) (ADVP (RB also)) (NP (NP (DT a) (JJ primary) (NN consumer)) (PP (IN of) (NP (NNS copepods)))))) (, ,) (CC and) (S (NP (NN research)) (VP (VBZ suggests) (SBAR (IN that) (S (NP (PRP they)) (VP (MD may) (VP (VB play) (NP (DT a) (JJ major) (NN role)) (PP (IN in) (S (VP (VBG balancing) (NP (NN phytoplankton) (NNS ecosystems)) (PP (IN by) (S (VP (VBG regulating) (NP (JJ copepod) (NNS populations)))))))))))))) (. .)))
They are also a primary consumer of copepods, and research suggests that they may play a major role in balancing phytoplankton ecosystems by regulating copepod populations.
(ROOT (S (NP (NNP Beneficial) (NNS fungi)) (VP (VBP play) (NP (NP (DT a) (JJ crucial) (NN role)) (PP (IN in) (NP (NP (NN balance)) (PP (IN of) (NP (NNS ecosystems))))))) (. .)))
Beneficial fungi play a crucial role in balance of ecosystems.