Which one of the following is categorised as a parasite in its true sense?
Correct answer: C. Head louse living on the human scalp as well as laying eggs on human hair.
- 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.
Explanation
Parasitism is an association in which one organism (the parasite) lives on (ectoparasitism) or in (endoparasitism) the body of another (the host), from which it obtains its nutrients. They also produce vast numbers of eggs there e.g., head lice living on the human scalp.
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