Fig. 2.1 shows a fetus developing inside its mother. [Figure 2.1]

1. (a)Complete Table 2.1, using letters from Fig. 2.1, to identify each of the following: Table 2.1 a structure that contains urea released by the fetus a region that contains cells, almost all of which could be used for determining the sex of the fetus a structure that is used to expel the fetus at birth a temporary structure that would have been expelled during menstruation if pregnancy had not occurred[4]
2. (b)Every day, babies are born suffering from severe withdrawal symptoms as a result of their mothers taking drugs during pregnancy.
3. (b)(i)Name a drug which the mother may have taken during pregnancy that might cause these withdrawal symptoms.[1]
4. (b)(ii)Suggest how drugs taken by the mother have been able to affect her developing fetus.[4]

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