题目内容

Platelets, or thrombocytes, are involved in:

A. inflammation
B. digestion
C. immunity
D. blood clotting

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The white blood cells active in immunity are the:

A. hematids
B. lymphocytes
C. adipose cells
D. chondrocytes

Substances produced by immune cells that counteract microorganisms and other foreign materials are called:

A. antibodies
B. antigens
C. anticoagulants
D. Rh factors

A deficiency of hemoglobin results in the disorder called:

A. hypertension
B. chromatosis
C. anemia
D. hemophilia

A neoplastic overgrowth of white blood cells is called:

A. anemia
B. leukemia
C. fibrosis
D. cystitis