I believe that on the Naive B-cell the antibodies exist as transmembrane proteins. A naive b-cell is a type of b-cell that has not been exposed to an antigen. When exposed it becomes either a memory B cell or a plasma cell that secrete antibodies specific to the antigen that was originally bound.
Answer: The Answer is A.) Burning of fossil fuels
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I just need this for I can post my question sorry
Answer: check the table in the attachment for answer
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