NEET Previous Year Question
Which one of the following is categorized as a parasite in true sense?
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- AHuman foetus developing inside the uterus draws nourishment from the mother.
- BHead louse living on the human scalp as well as laying eggs on human hair.
- CThe cuckoo (koel) lays its eggs in crew’s nest.
- DThe female Anopheles bites and sucks blood from humans.
Correct answer: B
Solution
(b) This is a true parasite because it lives on the host (ectoparasite), derives nourishment, and depends on the host for survival.(a) Foetus → not a parasite (natural physiological relationship)
(c) Cuckoo → brood parasitism (not true parasitism)
(d) Mosquito → temporary parasite (not permanent)
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