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Why the bacterium Treponema pallidum is difficult to culture? | |
A. | Because it requires a great deal of water to reproduce [Wrong Answer] |
B. | Because it is unable to use carbohydrates as an energy source [Wrong Answer] |
C. | Because it lacks the genes needed for TCA cycle and oxidative phosphorylation [Correct Answer] |
D. | Because it requires extremely low temperature at which water freezes [Wrong Answer] |