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Consider the following statements with reference to Extraocular vision:
Extraocular vision is the ability of night vision in certain land and marine species.
The vision is facilitated by the photoreceptor cells found on the bodies of the species.
Which of the above statements is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)None
Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements with reference to Extraocular visio...
Extraocular Vision
Statement 1: Extraocular vision is the ability of night vision in certain land and marine species.
Statement 2: The vision is facilitated by the photoreceptor cells found on the bodies of the species.
Explanation:
Extraocular vision is the ability of certain land and marine species to see even when their eyes are closed. This is achieved through the use of specialized photoreceptor cells that are found on the bodies of these species. These cells are responsible for detecting light and sending signals to the brain, allowing the animal to navigate and hunt in low light conditions.
However, it is important to note that extraocular vision is not the same as night vision. While it does allow these animals to see in low light conditions, it is not the same as the enhanced night vision that some animals possess.
Therefore, statement 1 is incorrect as it mentions night vision, which is not the same as extraocular vision. Statement 2 is correct as it explains the mechanism through which extraocular vision is facilitated.
Hence, the correct answer is option B - 2 only.
Statement 1: Extraocular vision is the ability of night vision in certain land and marine species.
Statement 2: The vision is facilitated by the photoreceptor cells found on the bodies of the species.
Explanation:
Extraocular vision is the ability of certain land and marine species to see even when their eyes are closed. This is achieved through the use of specialized photoreceptor cells that are found on the bodies of these species. These cells are responsible for detecting light and sending signals to the brain, allowing the animal to navigate and hunt in low light conditions.
However, it is important to note that extraocular vision is not the same as night vision. While it does allow these animals to see in low light conditions, it is not the same as the enhanced night vision that some animals possess.
Therefore, statement 1 is incorrect as it mentions night vision, which is not the same as extraocular vision. Statement 2 is correct as it explains the mechanism through which extraocular vision is facilitated.
Hence, the correct answer is option B - 2 only.
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Consider the following statements with reference to Extraocular visio...
Extra ocular vision is the ability to see without eyes which has been found in some marine species. Enrich Your Learning: Extraocular vision: Extra ocular vision is the ability to see without eyes and has been found in some marine species.
- Researchers have found that a species of brittle stars, which are relatives of starfish can see, even though it does not have eyes.
- The red brittle star (Ophiocoma wendtii), which lives in the coral reefs of the Caribbean Sea, becomes only the second creature, after a sea urchin species, known to have this ability.
What facilitates vision?
- In sea urchins and brittle stars, researchers suspect that extra ocular vision is facilitated by the photoreceptor cells found on their bodies.
- Another peculiar feature of the red brittle star is its signature colour change. While the creature is deep red during the day, it changes its colour to beige at night.
- The researchers think that there may be a link between their extra ocular vision and colour changing abilities since the responses they saw in the creatures tested during the day, disappeared in those that were tested at night.
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Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements with reference to Extraocular vision: Extraocular vision is the ability of night vision in certain land and marine species. The vision is facilitated by the photoreceptor cells found on the bodies of the species. Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'B'. Can you explain this answer?.
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