( ( All ( these ( primitive ( living cells ) ) ) ) ( ( ( ( have ( no ( central nucleus ) ) ) and ) ( are ( called prokaryotes ) ) ) . ) )
(ROOT (S (NP (PDT All) (DT these) (JJ primitive) (NN living) (NNS cells)) (VP (VP (VBP have) (NP (DT no) (JJ central) (NN nucleus))) (CC and) (VP (VBP are) (VP (VBN called) (NP (NNS prokaryotes))))) (. .)))
All these primitive living cells have no central nucleus and are called prokaryotes.
(ROOT (S (NP (NP (DT The) (NNS cells)) (PP (IN of) (NP (DT all) (NNS protists)))) (VP (VBP have) (NP (DT a) (NN nucleus))) (. .)))