Awarm front is progressing northward ahead of the storm center while a cold front is sweeping southeastward. the cool air mass north of the warm front is already in place. as the storm intensifies, the cold front rotates around the storm and catches the warm front. identify the weather map that shows these conditions.

The name of this is  a station model map

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.