(a) Fig. 6.1 is a list of infectious diseases. Each of the statements A to D describes a feature that applies to one or more of these diseases. [Figure 6.1]

1. (a)For each of the statements A, B, C and D, name all the diseases in Fig. 6.1 that match the feature described. A The causative organism of the disease is a virus. B The causative organism of the disease is a prokaryote. C The disease is transmitted by a faecal-oral route, for example, sewage containing the pathogen contaminates drinking water. D The causative organism of the disease spends part of its life cycle inside an insect, which acts as a vector of the disease.[4]
2. (b)Although many infectious diseases are caused by prokaryotic organisms, there are some that are caused by eukaryotic organisms. Complete Table 6.1 to show some differences between a prokaryotic cell and a eukaryotic cell. [Table 6.1][2]

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