Fill in the blank: when you paddle a boat in the water. the force of your paddle will push the water which will apply an equal force back on you. there is very little resistance to this motion because there is a limited force between the canoe and the surface of the water due to the smooth surface

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.

Very minute and important evidence needs to be collected in order together detail and figure out what had happened