The parts of the body affected by Newcastle disease of poultry are the

The parts of the body affected by Newcastle disease of poultry are the
  • A.
    digestive and circulatory systems
  • B.
    reproductive and excretory tracts
  • C.
    nervous system and respiratory tract
  • D.
    air-sac and the comb
  • E.
    comb and the legs
Correct Answer: Option C
Explanation
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