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?
Show answer
Answer: D. Statement 1 is correct: the green sea turtle is mainly herbivorous as an adult. Statement 2 is correct: many fish, such as parrotfish and some carps, are herbivores. Statement 3 is correct: dugongs and manatees are herbivorous marine mammals. Statement 4 is correct: many snakes, such as vipers and boas, give birth to live young (viviparous). So all four are correct.
Watch for: Students think of turtles and snakes as only meat-eating and egg-laying, and miss the exceptions.
Why the other options are wrong
- A. Wrong because statements 2 and 4 are also correct.
- B. Wrong because statement 1 is also correct; green sea turtles eat seagrass and algae.
- C. Wrong because statements 1 and 3 are also correct.
Source to check: NCERT Class 11 Biology, Chapter 4 'Animal Kingdom'; Zoological Survey of India / WWF-India species notes on dugong and green sea turtle
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.