(a) (i) 2. IV: V: I: II: III: The diagram below is an illustration of structures involved in the circulation of blood in mammals. Study it and answer questions 2(a) to 2(f). VI V VII (ii) Identify the parts labelled I to VIII. ↑ VIII Pulmonary vain I -11 IV Name two features that show that the structures are possessed by humans. Pla [2 marks] D Wr this​