21. The Immune System
Cells of the Immune System: Granulocytes
Multiple Choice
Multiple ChoiceWhite blood cells are referred to as _________.
A
Platelets.
B
Erythrocytes.
C
Leukocytes.
D
Megakaryocytes.
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White blood cells are referred to as _________.
Platelets.
Erythrocytes.
Leukocytes.
Megakaryocytes.