Biology

I took the following screenshot of the definition of Biology from Google. It's probably not the best way to illustrate how to add images, nor is it the best way to introduce material into the wiki, but it's just one example. Ideally, one would want to visit the a reliable source, such as NTNU's Department of Biology's homepage. They perform research in the biosphere, so it makes sense that they might be experts. I would add an external link to that as follows: https://www.ntnu.edu/biology/about-us/what-is-biology

Another option might be to introduce a video. This is pretty easy to do. I took the following video from YouTube.