Astudent added a solution to the plant cell shown in image 1 which resulted in the plant cell undergoing changes, as shown in image 2. what best directly explains the observed changes?

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.

Yes yes yes very good

Behind the cornea is a colored, ring shaped membrane called the iris. the iris has an adjustable circular opening called the pupil, which can expand or contract to control the amount of light entering the eye.