Lymphocyte is one of body immune cells that works by fighting bacteria. To distinguish foreign material to body material, lymphocyte can detect a series of protein called antigen. Most antigen is represented by macrophages. In response to the antigen, lymphocyte might produce an antibody which will bind to the antigen.
Answer: Antigen
Grade aa eggs are nearly perfect
I would say that it is B. thinner.
By using microscopes scientists were able to discover the existence of microorganisms, study the structure of cells, and see the smallest parts of plants, animals, and fungi.
