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Consider the following statements:
1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.
2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.
3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.
Which of the statements given above is/are correct?
- a)1 and 2 only
- b)2 only
- c)1 and 3 only
- d)3 only
Correct answer is option 'D'. Can you explain this answer?
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Consider the following statements:1. A few organisms that can tolerate...
- Temperature is the most ecologically relevant environmental factor. You are aware that the average temperature on land varies seasonally, decreases progressively from the equator towards the poles and from plains to the mountain tops. It ranges from subzero levels in polar areas and high altitudes to > 500 °C in tropical deserts in summer.
- There are, however, unique habitats such as thermal springs and deep-sea hydrothermal vents where average temperatures exceed 1000 C. It is general knowledge that mango trees do not and cannot grow in temperate countries like Canada and Germany, snow leopards are not found in Kerala forests and tuna fish are rarely caught beyond tropical latitudes in the ocean. You can readily appreciate the significance of temperature to living organisms when you realise that it affects the kinetics of enzymes and through it the basal metabolism, activity and other physiological functions of the organism.
- A few organisms can tolerate and thrive in a wide range of temperatures (they are called eurythermal), Hence, statement 1 is not correct.
- But, a vast majority of them are restricted to a narrow range of temperatures (such organisms are called stenothermal). Hence, statement 2 is not correct.
- The levels of thermal tolerance of different species determine to a large extent their geographical distribution. Hence, statement 3 is correct.
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Consider the following statements:1. A few organisms that can tolerate...
Thermal Tolerance and Geographical Distribution
Thermal tolerance refers to an organism's ability to withstand and function within a certain range of temperatures. It plays a crucial role in determining an organism's geographical distribution. Here's an explanation of the given statements:
Statement 1: A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.
This statement is incorrect. Stenothermal organisms are actually those that are restricted to a narrow range of temperatures and cannot tolerate extreme temperature variations. They are highly sensitive to temperature changes and can only survive within a limited thermal range.
Statement 2: Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.
This statement is correct. Eurythermal organisms have a broad thermal tolerance and can thrive in a wide range of temperatures. They are adapted to withstand fluctuations in temperature and are not limited to specific thermal conditions like stenothermal organisms.
Statement 3: The levels of thermal tolerance of different species determine to a large extent their geographical distribution.
This statement is also correct. The thermal tolerance of an organism plays a significant role in determining where it can live and proliferate. Species with specific thermal requirements will be limited to regions that provide suitable temperatures for their survival. In contrast, species with a wider thermal tolerance can inhabit diverse environments and have a broader geographical distribution.
Therefore, the correct answer is option 'D' - 3 only. Thermal tolerance is a crucial factor influencing the distribution of organisms across different habitats.
Thermal tolerance refers to an organism's ability to withstand and function within a certain range of temperatures. It plays a crucial role in determining an organism's geographical distribution. Here's an explanation of the given statements:
Statement 1: A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.
This statement is incorrect. Stenothermal organisms are actually those that are restricted to a narrow range of temperatures and cannot tolerate extreme temperature variations. They are highly sensitive to temperature changes and can only survive within a limited thermal range.
Statement 2: Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.
This statement is correct. Eurythermal organisms have a broad thermal tolerance and can thrive in a wide range of temperatures. They are adapted to withstand fluctuations in temperature and are not limited to specific thermal conditions like stenothermal organisms.
Statement 3: The levels of thermal tolerance of different species determine to a large extent their geographical distribution.
This statement is also correct. The thermal tolerance of an organism plays a significant role in determining where it can live and proliferate. Species with specific thermal requirements will be limited to regions that provide suitable temperatures for their survival. In contrast, species with a wider thermal tolerance can inhabit diverse environments and have a broader geographical distribution.
Therefore, the correct answer is option 'D' - 3 only. Thermal tolerance is a crucial factor influencing the distribution of organisms across different habitats.
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Consider the following statements:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. Can you explain this answer?
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Consider the following statements:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. 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:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. 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:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. Can you explain this answer?.
Consider the following statements:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. 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:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. 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:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice Consider the following statements:1. A few organisms that can tolerate and thrive in a wide range of temperatures are stenothermal organisms.2. Vast majority of organisms are restricted to a narrow range of temperatures are eurythermal organisms.3. The levels of thermal tolerance of different species determine to a large extent their geographical distribution.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 onlyd)3 onlyCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
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