Which row is correct?

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Biology
IGCSE&ALevel
CAIE
Exam No:9700_w24_qp_13 Year:2024 Question No:39

Answer:

A

Knowledge points:

11.1.1 describe the mode of action of phagocytes (macrophages and neutrophils)
11.1.2 explain what is meant by an antigen (see 4.1.3) and state the difference between self antigens and non-self antigens
11.1.3.1 macrophages
11.1.3.2 B-lymphocytes, including plasma cells
11.1.3.3 T-lymphocytes, limited to T-helper cells and T-killer cells
11.1.4 explain the role of memory cells in the secondary immune response and in long-term immunity

Solution:

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