NEET Previous Year Question

Which one of the following is categorized as a parasite in true sense ?

Topic: NEET PYQ

Answer: C. Full step-by-step solution below.

  1. AThe female Antopheles bites and sucks blood from humans.
  2. BHuman foetus developing inside the uterus draws nourishment from the mother.
  3. CHead louse living on the human scalp as well as laying eggs on human hair.
  4. DThe cuckoo (koel) lays its eggs in crow's nest.

Correct answer: C

Solution

(c) A true parasite lives on or inside a host organism for a significant part of its life cycle and depends on it for both shelter and nutrition. Female mosquitoes are not true parasites because they only visit the host briefly for a blood meal to produce eggs and do not live on the human body
The human fetus is not a parasite because it is the same species as the mother, and the cuckoo represents brood parasitism, which is a specialized behavioral relationship

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