Reread the first and second paragraphs. Number the events below in order from first to last. ___ Local business owners and movie studios began working together to bring films to local theaters.
___ Early movie theaters started opening in the early 1900s.
___ The first movies were made in the late 1800s.

To be honest I’m not really sure on what to do have you tried looking it up?

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.