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You are right in thinking mitochondria are needed to use oxygen (for respiration) — but only in eukaryotes. They are not needed in bacteria because… bacteria are mitochondria! Well that’s not true — it’s mitochondria that are bacteria. And that’s not true either — mitochondria were bacteria. Apologies for the theatricality, but all this is to emphasize the ...


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According to me, the main reason lies in the nature of the two diseases. Malaria isn't directly contagious from one person to another. It has to be transmitted by the bite of a mosquito, which means that if someone near you has malaria, those mosquitoes that bite him are carrying the disease! Whereas tuberculosis is a highly contagious disease, tiny ...


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The statement in the question about the current distribution of these diseases is not strictly accurate, as shown by the graphic below. [Malaria graphic: Wikipedia user, Percherie (2006); TB graphic: Corbett et al. (2003)] However there is no disputing that the contemporary and historical geographical distribution of these diseases differ. Why? The crux ...



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