Select your answer:
Topics:
Cardiovascular System Terminology Cardiology Medications Human Urinary System Male Reproductive System Hele Skeletal System Vocabulary for Organisms in Ecosystems Defence against Infectious Diseases Injuries in Archery Ecology Health Issues and Concerns Dermatology Basic Structure of the Human Body T Cells Kidney - Loop of Henlé Skin StructureOther quiz:
Immunology › ViewWhat cell is most responsible for the response seen at stage 4?
A. Memory Cells
B. Phagocytes
C. T killer cells
D. T helper cells
Lymphatic System › View
A soft tissue inside the bone that produces blood cells
A. Immune cells
B. Bone marrow
C. Lymph nodes
D. Spleen