What is depicted in this figure? What are the two organisms that compose this structure?
Which organism is labeled B?
Define the type of symbiosis shown and explain how it works in the structure shown in the figure?
What forms a similar relationship with certain fungi, called mycorrhizae? What does the fungus do?

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.

Cis correct i think