Given that we are aiming for at least 2.5 answers per question, should we be pro-actively encouraging askers to give at least some time before choosing their preferred answer in order to encourage multiple takes on a question? At present a large amount of questions seem to be accepted with one answer only.
Sometimes there are questions that have rather obvious answers. As I understand it, this site is geared more to professional biologists, and as such may have a narrower range of acceptable answers. In a field such as computer programming, or web design, there is a lot of room for opinions on how to do something, but in many scientific fields, there really is only a specific way that something works (although there may be many opinions on the reasons for that).
I think the Theoretical Physics site is a good standard to look at in your case as opposed to a more popular driven site.