B. an atom
Atoms are the basic units of matter and the defining structure of elements.
Answer:
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Explanation:
Plasmodium, a genus of parasitic protozoans of the sporozoan subclass Coccidia that are the causative organisms of malaria. Plasmodium<span>, which infects red blood cells in mammals (including humans), birds, and reptiles, occurs worldwide, especially in tropical and temperate zones.
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