An unknown bacterial species is recovered from a sick patient's digestive tract. It has a membrane outside the cell wall that contains toxic lipids. This observation indicates that
A) the infection should be relatively easy to control with common antibiotics, because the pathogen is a gram-positive species.
B) the infection should be relatively easy to control with common antibiotics, because the pathogen is a gram-negative species.
C) the infection may be quite threatening and difficult to control, because the pathogen is a gram-positive species.
D) the infection may be quite threatening and difficult to control, because the pathogen is a gram-negative species.
Answer: D
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Fill in the blank with the appropriate word.
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