( Populations ( ( can ( be ( defined ( as ( ( the collection ) ( of ( ( all ( the individuals ) ) ( of ( ( a ( given species ) ) ( that ( ( live together ) ( in ( a ( particular habitat ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Populations)) (VP (MD can) (VP (VB be) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN collection)) (PP (IN of) (NP (NP (PDT all) (DT the) (NNS individuals)) (PP (IN of) (NP (NP (DT a) (VBN given) (NN species)) (SBAR (WHNP (WDT that)) (S (VP (VBP live) (ADVP (RB together)) (PP (IN in) (NP (DT a) (JJ particular) (NN habitat))))))))))))))) (. .)))
Populations can be defined as the collection of all the individuals of a given species that live together in a particular habitat.
(ROOT (S (NP (NP (DT All) (NNS members)) (PP (IN of) (NP (DT a) (NN species) (NN living)))) (ADVP (RB together)) (VP (VB form) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN population))) (. .)))