I believe the answer is B. <span>The antibodies on B cells bind to the antigens on the pathogen's surface.
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A plan needs the sun and Carbon Dioxide
Answer:
People can be immunised against a pathogen through vaccination. Different vaccines are needed for different pathogens. For example, the MMR vaccine is used to protect children against measles, mumps and rubella (German measles).
<span>Adenine and guanine are both found in DNA and RNA</span>
