( ( ( ( endothermy ( ( The ( internal control ) ) ( of ( body temperature ) ) ) ) ; ) ( the ( ability ( to ( ( ( generate and ) maintain ) ( internal ( body heat ) ) ) ) ) ) ) . )
(ROOT (NP (NP (ADVP (RB endothermy)) (NP (DT The) (JJ internal) (NN control)) (PP (IN of) (NP (NN body) (NN temperature)))) (: ;) (NP (DT the) (NN ability) (S (VP (TO to) (VP (VB generate) (CC and) (VB maintain) (NP (JJ internal) (NN body) (NN heat)))))) (. .)))
endothermy  The internal control of body temperature; the ability to generate and maintain internal body heat.
(ROOT (S (NP (DT The) (NN term)) (ADVP (RB endothermy)) (VP (VBZ means) (S (VP (VBG controlling) (NP (NN body) (NN temperature)) (PP (IN within) (NP (NP (DT a) (JJ narrow) (NN range)) (PP (IN from) (NP (DT the) (NN inside))))) (PP (IN through) (NP (JJ biochemical) (CC or) (JJ physical) (NNS means)))))) (. .)))