( Soon ( ( ( the ( single cell ) ) ( that ( resulted ( from ( ( the union ) ( of ( the ( ( sperm and ) egg ) ) ) ) ) ) ) ) ( ( becomes ( ( an embryo ) ( that ( has ( millions ( of cells ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Soon)) (NP (NP (DT the) (JJ single) (NN cell)) (SBAR (WHNP (WDT that)) (S (VP (VBD resulted) (PP (IN from) (NP (NP (DT the) (NN union)) (PP (IN of) (NP (DT the) (NN sperm) (CC and) (NN egg))))))))) (VP (VBZ becomes) (NP (NP (DT an) (NN embryo)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (NP (NNS millions)) (PP (IN of) (NP (NNS cells))))))))) (. .)))
Soon the single cell that resulted from the union of the sperm and egg becomes an embryo that has millions of cells.
(ROOT (S (NP (PRP We)) (ADVP (DT all)) (VP (VP (VBP start) (PP (IN as) (NP (DT a) (JJ single) (NN cell)))) (CC and) (VP (ADVP (RB soon)) (VBP grow) (PRT (RP into)) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN embryo)))) (. .)))