Starting at the main train station (Hauptbahnhof) or downtown (Marktplatz) you should take tram n° 5 or
n° 7 towards Weinberg Campus.
Get off at ‘Weinberg Campus‘ and you’ll arrive at the Biologicum after a 3 minutes walk.
Click here for the official website of the public transport company of Halle (HAVAG) and its timetables.
Click here for a more general search via Google Maps.