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GS Paper IUPSC Prelims 2013
Ecology & Ecosystems
Question No. 224Interactive Test Mode
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Q224. Consider the following animals: 1. Sea cow 2. Sea horse 3. Sea lion Which of the above is/are mammal/mammals?

Consider the following animals:

  1. Sea cow
  2. Sea horse
  3. Sea lion Which of the above is/are mammal/mammals?
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 2013 • Environment and Ecology

Correct Answer: Option (B) — 1 and 3 only

Concept & Option Breakdown

Standard Reference Verified

1 is correct: Sea cow (Dugong/Manatee) belongs to order Sirenia and is a true marine mammal that suckles its young.

2 is incorrect: Sea horse belongs to the genus Hippocampus and is a bony marine fish (class Actinopterygii).

3 is correct: Sea lion belongs to the family Otariidae (pinnipeds), which are semi-aquatic marine mammals.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2013 (Q224)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicEnvironment and Ecology → Ecology & Ecosystems
Official Answer KeyOption (B) — 1 and 3 only

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Frequently Asked Questions — UPSC Prelims 2013 Q224

What is the official answer for UPSC Prelims 2013 GS Paper I Question 224 (Environment and Ecology)?

The official UPSC answer key for this 2013 Environment and Ecology (Ecology & Ecosystems) question is Option (B): "1 and 3 only". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2013 question belong to?

This question belongs to GS Paper I under the subject "Environment and Ecology" and micro-topic "Ecology & Ecosystems". You can explore all repeated questions from Ecology & Ecosystems 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 Ecology & Ecosystems UPSC Prelims question using option elimination?

To solve Ecology & Ecosystems 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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