"Monocytes and macrophages" are the components of the immune system among the following choices given in the question that <span>form memory cells after you receive a vaccine. The correct option among all the options that are given in the question is the second option. I hope that the answer helped you.</span>
They both have ribosomes in the cell. Ribosomes is the cell organelle that is present in both prokaryotic and eukaryotic cells.
