A bit confused why there are currently 3 votes saying this is off-topic. Anyone want to share their views? It might seem like an obvious answer to a professional but that doesn't make it off-topic, and given its potential to improve understanding of antibiotic resistance I think there's a strong case for keeping it open.

(sorry, wrong link)

@arboviral It's marked as homework question. But this is the "usual" abuse of this close reason. It should rather be "bad or no research" prior to asking.

But yes, I don't see it has necessarily to be closed.

@Chris Ah, I see - thanks for spotting. I'm a little surprised that none of the VtCs added that tag to the question. It also sounds to me like a student picking up on a comment from a teacher and wanting more evidence, rather than being an assignment - I realise that falls under the third category ("A question that addresses a basic biology concept that may seem trivial to biology professionals") but I'm personally unsure that should be in there - that doesn't sound like "homework" to me...