Erythrocytes originate in the bone marrow, and their production is stimulated by
A. thrombopoisis
B. erythropoietin
C. erythroblast
D. myelogenous
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The liquid portion of blood is called ______.
The ancestors of all blood cells are called ______cells.
Platelets are produced by certain giant cells called ______.
Some monocytes enter the tissues and mature into phagocytic cells called ______.
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