581. What is the result of invasion of a body by pathogens?
A. Infection
B. Inflammation
C. Swelling
D. Pus

582. What is the behavior in which T cells and B cells constantly travel throughout the body seeking out and destroying foreign substances?
A. Antibody-mediated immune response
B. Immune surveillance
C. Cell-mediated immune response
D. Vaccination

583. In a fetus, where are lymphocytes produced?
A. In the spleen
B. In the bone marrow
C. In the liver
D. In the heart

584. Which of the following produces the antibodies employed in the specific immune response of vertebrates?
A. B lymphocytes
B. T lymphocytes
C. Neutrophils
D. Macrophages

585. Which of the following is not part of the vertebrate immune system?
A. Lymphocytes
B. Antibodies
C. Cardiac glycosides
D. Lymph nodes

586. The protein, produced by B cells that binds to a specific antigen is
A. phagocyte
B. leukocyte
C. vaccine
D. antibody

587. Which of the following characteristics are common in lymphocytes, macrophages, and neutrophils?
A. They are all part of the nonspecific immune response in vertebrates
B. They are all part of the specific immune response in vertebrates
C. They are all part of the internal defenses of nonvertebrates
D. They are all types of white blood cells

588. Which of the following blood proteins can destroy pathogens?
A. Major histocompatibility complex
C. Fibrinogen
D. Complement system

589. Which of these is part of the lymphoid system in humans?
A. Liver
B. Stomach
C. Tonsils
D. Kidneys

590. What type of B cell is like a tiny factory that produces antibodies identical to the B cell receptor that bind to the original antigen?
A. T cells
B. Memory cells
C. Plasma cells
D. Macrophages