( ( Habitat ( of ( a species ) ) ) ( is ( ( ( the ( natural environment ) ) or ) ( ( the ( physical surroundings ) ) ( where ( they live ) ) ) ) ) )
(ROOT (S (NP (NP (NNP Habitat)) (PP (IN of) (NP (DT a) (NN species)))) (VP (VBZ is) (NP (NP (DT the) (JJ natural) (NN environment)) (CC or) (NP (NP (DT the) (JJ physical) (NNS surroundings)) (SBAR (WHADVP (WRB where)) (S (NP (PRP they)) (VP (VBP live)))))))))
Habitat of a species is the natural environment or the physical surroundings where                             they live
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (DT the) (JJ physical) (NN environment)) (PP (PP (IN in) (SBAR (WHNP (WDT which)) (S (NP (DT a) (NNS species)) (VP (VBZ lives))))) (CC and) (PP (TO to) (SBAR (WHNP (WDT which)) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN adapted) (NP (NN habitat))))))))) (. .)))