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UPSC 2001: Consider the following statements: I. Tapeworm is a hermaphrodite. II. Round-worm has separate sexes. III. Filaria is caused by a nematode. IV. Guinea worm is an annelid. Which of these are correct?
(a)I and II
(b)I, II and III
(c)III and IV
(d)II, III and IV
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Not attemptedCorrect Answer: (b) I, II and III
Tapeworms are hermaphrodites (possessing both sex organs); roundworms such as Ascaris are dioecious with separate males and females; filarial disease (elephantiasis) is produced by nematodes like Wuchereria bancrofti. The guinea-worm (Dracunculus medinensis) is also a nematode, not an annelid, so only statements I, II and III are correct, matching option (b). ([licchavilyceum.com](https://licchavilyceum.com/upsc-civil-services-prelims-2001-solved-question-paper/))
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Frequently Asked Questions
What is the correct answer to this UPSC 2001 Science & Technology question?▼
The correct answer is option (b): I, II and III. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Biology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2001, GS Paper 1, as Question 132. It falls under Science & Technology > Biology.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Biology?▼
UPSC has asked 97 questions from Biology (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.