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(a) Fig. 2.1 is a photomicrograph showing the fertilisation of one human egg cell.Fig. 2.1Describe and explain the adaptations of the cells shown in Fig. 2.1 that enable

State the name of the gas exchange surface in human(a) (i) State the name of the gas exchange surface in humans...........................................................

If the total unit cost of manufacturing Product Y is currently $40 and the total unit cost after modifying the style is estimated to be $48,the differential cost for this