It seems like there are many posts that are eventually flagged for removal because they are not the right type of questions for the site, as described here.
The only flag I see that can apply to these is to label them as "blatantly off topic" unless they fall under some of the other off-topic categories (homework, etc) - unfortunately, that flag doesn't seem appropriate to all cases, and there are sometimes questions which could be rescued albeit with substantial effort (that is, they do not "have nothing to do with biology" but they might be discussion questions, or could work with modification on another SE site).
Am I missing a flag that others in the community commonly use in these cases?