Science does not always aim for exact numerical precision. So-called Fermi questions (questions that can be answered using Fermi's estimation technique) have been answered by science (not necessarily on SE) approximately, such as:
- Approximately how many individuals of a certain species live in a certain habitat
- Approximately how much oxygen the rainforest produces
- Approximately how many ribosomes are in a cell
- And much more
Many sciences rely heavily on Fermi questions. So do certain branches of biology.
Some Fermi questions can be easily answered due to public availability of all necessary information, but do require some expertise (for example knowledge of such information sources).
Are such questions welcome on Biology.SE? If not, which site guidelines say so?