Home Biology Ecosystem Previous Year Questions Which one of the following is categorized as…
Biology Ecosystem Previous Year Questions Single Correct MCQ
Published on: August 13, 2026

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

A
The female Antopheles 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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Text Solution

Verified by Experts
The correct answer is:
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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