Which one of the following is categorised as aparasite in true sense?

  • [AIPMT 2011]
  • A

    The female Anopheles bites and sucks blood from humans

  • B

    Human foetus developing inside the uterus draws nourishment from the mother

  • C

    Head louse living on the human scalp as well as laying eggs on human hair

  • D

    The cuckoo (koel) lays its eggs in crow’s nest.

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  • [AIIMS 2012]

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