( ( Because ( they ( ( can not ) move ) ) ) ( , ( plants ( ( ( must also ) ( ( ( ( defend themselves ) chemically ) ( from ( herbivores ( , ( ( pathogens and ) competition ) ) ) ) ) ( from ( other plants ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Because) (S (NP (PRP they)) (VP (MD can) (RB not) (VP (VB move))))) (, ,) (NP (NNS plants)) (VP (MD must) (ADVP (RB also)) (VP (VB defend) (NP (PRP themselves)) (ADVP (RB chemically)) (PP (IN from) (NP (NNS herbivores) (, ,) (NNS pathogens) (CC and) (NN competition))) (PP (IN from) (NP (JJ other) (NNS plants))))) (. .)))
Because they cannot move, plants must also defend themselves chemically from herbivores, pathogens and competition from other plants.
(ROOT (S (NP (NNS Plants)) (VP (VBP face) (NP (NP (CD two) (NNS types)) (PP (IN of) (NP (NNS enemies)))) (: :) (NP (NNS herbivores) (CC and) (NNS pathogens))) (. .)))