UPSC CSE Prelims
Question 3
Consider the following statements :
- Some species of turtles are herbivores.
- Some species of fish are herbivores.
- Some species of marine mammals are herbivores.
- Some species of snakes are viviparous.
Which of the statements given above are correct?
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation:
Different animal groups contain herbivorous species, including green sea turtles, parrotfish and dugongs. Some snakes, including boas and vipers, give birth to live young; hence all four assertions hold.
Statement / Pair Analysis:
1 (Correct): Green sea turtles graze on seagrass as adults, showing turtles can be herbivorous.
2 (Correct): Parrotfish and certain other fish feed on algae or plant material.
3 (Correct): Dugongs and manatees are herbivorous marine mammals.
4 (Correct): Many boas and vipers bear live young (viviparity or ovoviviparity).
Option-wise Analysis:
A (Incorrect): It omits true item 2 (Parrotfish and certain other fish feed on algae or plant material); omits true item 4 (Many boas and vipers bear live young (viviparity or ovoviviparity)).
B (Incorrect): It omits true item 1 (Green sea turtles graze on seagrass as adults, showing turtles can be herbivorous).
C (Incorrect): It omits true item 1 (Green sea turtles graze on seagrass as adults, showing turtles can be herbivorous); omits true item 3 (Dugongs and manatees are herbivorous marine mammals).
D (Correct): Includes all and only the true statements/pairs.