Biology Class 11 Chapter 13 Immunity

1. Who hypothesized that cowpox somehow conferred protection against small pox? 2. The production of antibodies by the body against foreign molecules is known as? 3. The ability of the body to resist damage by the foreign objects is known as? 4. The study of immunity and defence mechanism of the body is known as? 5. Latin word immunis means? The condition in which the guard cells become limp, soft and weak is known as? Potassium ions enter guard cells from the surrounding epidermal cells by? The loss of water vapours by evaporation from aerial parts of the plant body is known as?


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