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Frosted Cell's Fascinating Facts

Across
WBC protect the body from ______ and foreign invaders.
Another name for white blood cells is ________.
WCB are the cells of the ______ used to protect the body from disease.
WBC can engulf other cells and ________.
There are ____ types of WBC.
WBC make up less then ____ percent of your blood.
Down
WBC act like _________ living single organisms.
WBC can not divide and __________ on their own.
WBC are ______ components
WBC are produced from multipotent ______ in the bone marrow.