If you click on the link, it will take you to the memorial and you can see what's there. In general, there is a Y if anything at all is written so it may not be a true bio (just means something is written in the field designated as "bio" in the process of creating the memorial). You can link the memorial as a source to the profile you are working on. Depending on what the text says, it also may point you to additional areas to research (such as names of parents or spouses, places the person lived or their occupation, etc).