( ( Altricial young ) ( ( ( ( are ( born helpless ) ) and ) ( ( require care ) ( for ( ( a ( specific amount ) ) ( of time ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Altricial) (JJ young)) (VP (VP (VBP are) (VP (VBN born) (S (ADJP (JJ helpless))))) (CC and) (VP (VBP require) (NP (NN care)) (PP (IN for) (NP (NP (DT a) (JJ specific) (NN amount)) (PP (IN of) (NP (NN time))))))) (. .)))
Altricial young are born helpless and require care for a specific amount of time.
(ROOT (S (NP (JJ Altricial) (NNS organisms)) (VP (VP (VBP are) (ADJP (JJ helpless) (PP (IN at) (NP (NN birth))))) (CC and) (VP (VBP require) (NP (NP (NNS lots)) (PP (IN of) (NP (NN help)))) (PP (IN from) (NP (PRP$ their) (NNS parents))))) (. .)))