( ( Since ( cells ( are ( ( the ( basic structure ) ) ( of ( living things ) ) ) ) ) ) ( , ( it ( ( ( makes up ) ( your ( whole body ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Since) (S (NP (NNS cells)) (VP (VBP are) (NP (NP (DT the) (JJ basic) (NN structure)) (PP (IN of) (NP (VBG living) (NNS things))))))) (, ,) (NP (PRP it)) (VP (VBZ makes) (PRT (RP up)) (NP (PRP$ your) (JJ whole) (NN body))) (. .)))
Since cells are the basic structure of living things, it makes up your whole body.
(ROOT (S (NP (NNS Cells)) (VP (VBP are) (NP (NP (JJ small) (JJ biological) (NNS structures)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (NP (DT all) (VBG living) (NNS things)) (, ,) (PP (VBG including) (NP (DT the) (JJ human) (NN body))))))))) (. .)))