Comparative Immunology of Animal mcqs January 8, 2026April 9, 2024 by u930973931_answers 15 min Score: 0 Attempted: 0/15 Subscribe 1. What is the primary function of the immune system in animals? (A) Protection against pathogens (B) Regulation of metabolism (C) Coordination of movement (D) Maintenance of body temperature 2. Which of the following is NOT a component of the innate immune system? (A) Antibodies (B) Phagocytes (C) Natural killer cells (D) Complement proteins 3. Which type of immunity provides immediate, nonspecific defense against pathogens? (A) Adaptive immunity (B) Innate immunity (C) Humoral immunity (D) Cellular immunity 4. What is the primary role of phagocytes in the immune system? (A) Engulfment and destruction of pathogens (B) Activation of T cells (C) Production of antibodies (D) Secretion of cytokines 5. Which of the following is a characteristic of adaptive immunity? (A) Rapid response to pathogens (B) Memory of previous pathogen encounters (C) Non-specific recognition of pathogens (D) Presence at birth 6. What is the main function of T cells in the adaptive immune response? (A) Direct killing of infected cells (B) Production of antibodies (C) Phagocytosis of pathogens (D) Activation of B cells 7. Which of the following is a type of adaptive immunity that involves the production of antibodies? (A) Cellular immunity (B) Humoral immunity (C) Innate immunity (D) Passive immunity 8. What is the primary function of B cells in the adaptive immune response? (A) Direct killing of infected cells (B) Production of antibodies (C) Phagocytosis of pathogens (D) Activation of T cells 9. Which of the following is NOT a type of antigen-presenting cell (APC)? (A) Macrophages (B) Natural killer cells (C) Dendritic cells (D) B cells 10. Which type of immunity is acquired through the transfer of antibodies from another individual? (A) Active immunity (B) Passive immunity (C) Innate immunity (D) Acquired immunity 11. What term describes the ability of the immune system to distinguish between self and non-self antigens? (A) Immune tolerance (B) Immune memory (C) Immune recognition (D) Immune response 12. Which of the following cells is involved in both innate and adaptive immunity? (A) Natural killer cells (B) B cells (C) T cells (D) Macrophages 13. Which of the following is a type of cytokine produced by immune cells to regulate the immune response? (A) Interferon (B) Histamine (C) Acetylcholine (D) Serotonin 14. What term describes the process by which the immune system remembers previous pathogen encounters? (A) Immune tolerance (B) Immune response (C) Immune recognition (D) Immune memory 15. Which of the following is a characteristic of the adaptive immune response? (A) Generation of immunological memory (B) Non-specific recognition of pathogens (C) Immediate response to pathogens (D) Absence of specificity