REVIEW 2026 COMPLETE QUESTIONS
WITH SOLUTIONS GRADED A+
◉Spleen. Answer: - fights invading germ cells in the blood
- controls level of blood cells (WBC, RBC, and platelets)
- filters blood (removes old/damaged RBCs)
◉Lymphoid system. Answer: spleen, thymus, lymphatic vessels,
lymph nodes, tonsils
- maintains fluids
◉Bone marrow. Answer: releases blood cells into the blood stream
when they are mature, helps create WBC to fight infection
◉Antibody vs. cell mediated immunity. Answer: · Antibody-
mediated immunity (humoral immunity): B-cells, bone marrow,
make antibodies forever (must divide)
· Cell-mediated immunity: T-cell response, does not depend on
antibodies, form in bone marrow, mature in thymus, T4 (helper) and