Use the words to label the white blood cell

White blood cells are the cells which play an important role in providing immunity to the body.  The WBC can be categorized into five types which perform distinct functions in immunological response.

In the given question, since the WBC is engulfing the bacteria particle by the process of phagocytosis. The WBC contains cytoplasm and bilobed nucleus, therefore, this could be wither a neutrophil or eosinophil.

i'd say that the moon rock is about 2.2 billion years old.