Examlex
If fossils of the following species were discovered and dated, which would be the most recent?
Neutrophil
Type of white blood cell; small phagocytic white blood cell with a lobed nucleus and small granules in the cytoplasm.
Natural Killer Cells
A type of lymphocyte that plays a major role in the rejection of tumors and cells infected by viruses by directly killing them.
Eosinophils
A type of white blood cell that is involved in combating multicellular parasites and certain infections in vertebrates, also associated with allergic reactions.
Parasitic Worm Infection
An infestation by helminths, a type of parasitic worm, which can cause disease and malnutrition.
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