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GS Paper IUPSC Prelims 2014
Health & Medicine
Question No. 183Interactive Test Mode
00:00
+2-0.66

Q183. Among the following organisms, which one does not belong to the class of the other three?

Among the following organisms, which one does not belong to the class of the other three?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2014 • Science and Technology

Correct Answer: Option (A) — Crab

Concept & Option Breakdown

Standard Reference Verified

Option (a) is correct: Mite, Scorpion, and Spider belong to the class Arachnida (subphylum Chelicerata), having 4 pairs of walking legs and no antennae. A crab belongs to the subphylum/class Crustacea (Malacostraca), having 5 pairs of walking legs (decapods), two pairs of antennae, and gills for respiration.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2014 (Q183)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (A) — Crab

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Frequently Asked Questions — UPSC Prelims 2014 Q183

What is the official answer for UPSC Prelims 2014 GS Paper I Question 183 (Science and Technology)?

The official UPSC answer key for this 2014 Science and Technology (Health & Medicine) question is Option (A): "Crab". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2014 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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