( Biennials ( ( are ( plants ( that ( complete ( ( these ( life cycle ) ) ( in ( ( ( two years ) or ) ( two ( growing seasons ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Biennials)) (VP (VBP are) (NP (NP (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VB complete) (NP (NP (DT these) (NN life) (NN cycle)) (PP (IN in) (NP (NP (CD two) (NNS years)) (CC or) (NP (CD two) (VBG growing) (NNS seasons)))))))))) (. .)))
Biennials are plants that complete these life cycle in two years or two growing seasons.
(ROOT (S (NP (NP (VBG Growing)) (CC and) (NP (NN reproducing))) (VP (VBP occur) (PP (IN in) (NP (DT both) (NNS plants) (CC and) (NNS humans)))) (. .)))
Growing and reproducing occur in both plants and humans.