( ( A population ) ( ( is ( ( an assemblage ) ( of ( organisms ( of ( ( the ( same species ) ) ( ( utilizing ( the resources ) ) ( in ( the ( same area ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN population)) (VP (VBZ is) (NP (NP (DT an) (NN assemblage)) (PP (IN of) (NP (NP (NNS organisms)) (PP (IN of) (NP (NP (DT the) (JJ same) (NN species)) (VP (VBG utilizing) (NP (DT the) (NNS resources)) (PP (IN in) (NP (DT the) (JJ same) (NN area)))))))))) (. .)))
A population is an assemblage of organisms of the same species utilizing the resources in the same area.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT a) (NN group)) (PP (IN of) (NP (NP (NNS organisms)) (PP (IN of) (NP (DT the) (JJ same) (NN species)))))) (SBAR (IN that) (S (VP (VBP live) (PP (IN in) (NP (DT the) (JJ same) (NN area)))) (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN population))))) (. .)))