13 different clotting factors must interact before blood ______(clots).
A. completmentes
B. suspends
C. coagulates
D. precipitates
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the two types of agranulocytes are
A. lymphocyte and phagocyte
B. lymphocyte and neutrophil
C. monocyte and macrophage
D. monocyte and lymphocyte
Platelets are important in the prevention of blood loss, a process termed _
A. homeostasis
B. hepotolysis
C. hemostasis
D. coagulation
______inhibit the ability of viruses to infect uninfected cells and stimulate macrophages to ingest bacteria.
A. Lymphoidkines
B. Cytokines
C. Immunogloblins
D. Interferons
_________activate T cells, called helper cells or T4 cells, which can stimulate antibody production.
A. Interferons
B. Interleukins
C. cytotoxic matters
D. fungi