( and ( ( ( ( ( -LRB- ( 4 -RRB- ) ) ( biology ( of animals ) ) ) -- ) ( ( ( ( ( ( ( ( nutrition , ) digestion ) , ) breathing ) , ) ( regulation ( of ( ( ( ( the ( internal environment ) ) , ) ( ( ( endocrine and ) neural ) control ) ) , ) ) ) ) and ) behavior ) ) . ) )
(ROOT (FRAG (CC and) (NP (NP (LST (-LRB- -LRB-) (LS 4) (-RRB- -RRB-)) (NP (NN biology)) (PP (IN of) (NP (NNS animals)))) (: --) (NP (NP (NN nutrition)) (, ,) (NP (NN digestion)) (, ,) (NP (NN breathing)) (, ,) (NP (NP (NN regulation)) (PP (IN of) (NP (NP (DT the) (JJ internal) (NN environment)) (, ,) (NP (ADJP (JJ endocrine) (CC and) (JJ neural)) (NN control)) (, ,)))) (CC and) (NP (NN behavior))) (. .))))
and (4) biology of animals--nutrition, digestion, breathing, regulation of the internal environment, endocrine and neural control, and behavior.
(ROOT (S (NP (NNS Animals)) (VP (VBP engage) (PP (IN in) (NP (JJ internal) (NN digestion)))) (. .)))