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White blood corpuscles are used by our body

  • A.To help liver work
  • B.To combat infection
  • C.To carry oxygen
  • D.To dissolve proteins

Answer: B

White blood corpuscles combat infection.

Neutrophils and macrophages engulf bacteria; lymphocytes make antibodies and destroy infected cells. There are only about 4,000 to 11,000 per cubic millimetre against five million red cells, but their number rises sharply during infection.

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