Atom, organelles, molecules, and cell
It would be Watson and Crick in Feb 28 1953
The correct answer is that it produces antibodies against the sensitizing antigen.
Plasma cells are formed in the bone marrow, the B cells divide into plasma cells, which generate molecules of antibody. Once discharged into the lymph and blood, these antibody molecules combine with the target antigen, that is, foreign substance and starts its destruction or neutralization.
Answer:
Microscopes
Explanation:
cells were seen on the microscope.
