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IGCSE BIOLOGY Questions on immunity Coordination and Excretion

1. Differentiate between the following terms 1. Active immunity and Passive immunity [2] ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… 2. Pathogen and Vaccine [2] …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… 3. capillaries and arteries [2… Read More »IGCSE BIOLOGY Questions on immunity Coordination and Excretion