Describe How Clonal Selection Works to Give Both Primary and Secondary

Q16: Mast cells are _ .<br>A) are transformed

Q17: The function of kallikrein is to<br>A) activate

Q18: Match each sentence with the most appropriate

Q19: Lymphoid tissue<br>A) stores lymphocytes.<br>B) processes lymphocytes.<br>C) includes

Q20: Match each sentence with the most appropriate

Q22: Immune defense against cancer depends on<br>A) the

Q23: Although many cells undergo mutation during an

Q24: The _ is/are the origin of all

Q25: Although B-cells (as plasma cells) are specialized

Q26: Match each sentence with the most appropriate