निम्नलिखित कथनों पर विचार कीजिए :
- 1.समुद्री कच्छपों की कुछ जातियाँ शाकभक्षी होती हैं।
- 2.मछली की कुछ जातियाँ शाकभक्षी होती हैं।
- 3.समुद्री स्तनपायियों की कुछ जातियाँ शाकभक्षी होती हैं।
- 4.साँपों की कुछ जातियाँ सजीवप्रजक होती हैं।
उपर्युक्त में से कौन-से कथन सही हैं?
Read this question in English
Consider the following statements:
1. Some species of turtles are herbivores.
2. Some species of fish are herbivores.
3. Some species of marine mammals are herbivores.
4. Some species of snakes are viviparous.
Which of the statements given above are correct?
(a) 1 and 3 only · (b) 2, 3 and 4 only · (c) 2 and 4 only · (d) 1, 2, 3 and 4
उत्तर और व्याख्या · explanation in English
Answer: (d) 1, 2, 3 और 4
All four statements are correct. The word 'some' in each only requires that at least one species fits, and each has a well-known example: the green turtle, the grass carp, the dugong and the sea snakes.
- ✓ 1. The green turtle is a herbivore, eating mostly seaweed, seagrasses and algae.
- ✓ 2. Many fish are plant eaters; the grass carp, for example, is a basically herbivorous fish that feeds on aquatic weeds.
- ✓ 3. The dugong (sea cow) is a marine mammal that depends largely on seagrass for food.
- ✓ 4. Viviparous means the young develop inside the mother and are born alive. Sea snakes such as the dusky sea snake do this, and so do boas and many vipers.
Remember · 'Some species' statements are usually true: herbivorous green turtle, grass carp and dugong; viviparous sea snakes.
Sources
- NOAA Fisheries: Green Turtle ↗ “They are unique among sea turtles in that they are herbivores, eating mostly seaweed, seagrasses, and algae.”
- FAO Cultured Aquatic Species Fact Sheets: Grass carp ↗ “It is a basically herbivorous fish that naturally feeds on certain aquatic weeds.”
- UNEP/CMS Dugong MoU: Dugong Facts ↗ “The dugong is the only marine herbivorous mammal, depending largely on seagrass for food.”
- NOAA Fisheries: Dusky Sea Snake ↗ “The dusky sea snake is viviparous, which means embryos develop internally and young undergo live birth.”
Question and answer: UPSC's official GS Paper I (2019, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). Permalink ·