You are working on your bachelor thesis. The project is individual and experimental. You need to make a number of different experiments and combine the results.
You will be performing most of the experiments on your own, but there are other people working in the lab, who can help you get started.
Your official supervisor is the leader of the lab. However, she does not have time to be there much, so on a day to day basis you rely on the help of one lab-technician and two Ph.D-students working in the lab.