Question 1
What are blood cells that differentiate into macrophages known as?
◦ Monocytes
◦ Neutrophils
◦ Eosinophils
◦ Basophils
Question 2
Without prior exposure to an antigen, which cells are able to destroy some types of tumor cells and some virus-infected cells?
◦ Lymphocytes
◦ Plasma cells
◦ Megakaryocytes
◦ Natural killer (NK) cells