( ( The cell ) ( ( is ( ( ( the ( lowest level ) ) ( of organization ) ) ( that ( can ( live ( as ( an organism ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN cell)) (VP (VBZ is) (NP (NP (DT the) (JJS lowest) (NN level)) (PP (IN of) (NP (NN organization))) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB live) (PP (IN as) (NP (DT an) (NN organism))))))))) (. .)))
The cell is the lowest level of organization that can live as an organism.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN cell)) (VP (VBZ is) (NP (NP (DT the) (JJS lowest) (NN level)) (PP (IN of) (NP (NN organism))) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB perform) (NP (NP (DT all) (NNS activities)) (VP (VBN required) (PP (IN for) (NP (NN life))))))))))) (. .)))