a man in a gray and white striped shirt discusses a colorful diagram of a many branched organism
a lecturer explains the way the immune system
there is a big stage decorated in pink and a man in striped shirt is speaking something
an indian guy explaining that the diapraghm has a lot of branches
a man on stage discussing how the immune system works during a ted talk
a man is giving a ted talks speech about the immune systems and their various branches
a man talking something about a drawing on the stage
a man discusses a diagram of human biology
a diagram of the immune system being narrated by a man who is speaking to an audience and a large auditorium
man in white blouse is talking about his latest project
man is talking about his latest project with images
a boy in white and ash  color dress  wearing cloth standing and speaking on science topic audience watching  displaying on screen
a man gives a presentation with a complicated diagram
a man in a striped shirt uses a diagram in a presentation
a person gives a lecture and shows a complicated diagram
a young man giving a lecture uses a colorful diagram
a man discusses a diagram of drug responses in human immune systems on stage
sketh for science a man shows in stage
a video demo on how cells are arranged in our body which will follow the tree model
a woman with a mic is talking to an audience