UPSC Exam > UPSC Questions > Consider the following statements:1. In most...
Start Learning for Free
Consider the following statements:
1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.
2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.
3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.
Which of the statements given above is/are correct?
- a)1 Only
- b)1 and 2 Only
- c)1 and 3 Only
- d)1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Consider the following statements:1. In most terrestrial ecosystems, ...
Statement 1 is correct. In most terrestrial ecosystems, the pyramid of biomass has a large base of primary producers with smaller trophic levels on top, reflecting the greater biomass of plants compared to herbivores and carnivores.
Statement 2 is correct. In many aquatic ecosystems, the pyramid of biomass can be inverted, meaning that the biomass of primary producers (phytoplankton) is less than that of the higher trophic levels (zooplankton and fish). This inversion occurs because the primary producers reproduce and are consumed rapidly, maintaining a lower biomass.
Statement 3 is incorrect. The energy pyramid always remains upright because energy flow in an ecosystem follows the laws of thermodynamics, with energy decreasing at each successive trophic level due to inefficiencies in energy transfer.
Therefore, the correct answer is Option B: 1 and 2 Only.
Free Test
FREE
| Start Free Test |
Community Answer
Consider the following statements:1. In most terrestrial ecosystems, ...
Understanding the Statements
The statements provided relate to ecological pyramids, specifically biomass and energy pyramids in terrestrial and aquatic ecosystems. Let's evaluate each statement individually.
Statement 1: Pyramid of Biomass in Terrestrial Ecosystems
- In most terrestrial ecosystems, the pyramid of biomass indeed has a large base of primary producers (plants) at the bottom, supporting smaller biomass at higher trophic levels (herbivores and carnivores).
- This statement is correct as it reflects the typical structure of terrestrial food webs.
Statement 2: Inverted Pyramid of Biomass in Aquatic Ecosystems
- In many aquatic ecosystems, particularly in those with high turnover rates (like phytoplankton), the biomass pyramid can be inverted.
- Here, the biomass of primary producers (phytoplankton) may be less than that of the higher trophic levels (zooplankton and fish), especially when considering seasonal changes.
- This statement is also correct.
Statement 3: Inverted Energy Pyramid
- While energy pyramids are typically not inverted because energy is lost at each trophic level (usually about 90% loss), there are rare conditions where they can appear inverted, depending on specific ecological dynamics.
- However, this is uncommon and generally not accepted as a standard characteristic of energy flow in ecosystems.
- Hence, this statement is somewhat misleading and not typically regarded as correct.
Conclusion
Based on the evaluations:
- Statements 1 and 2 are correct.
- Statement 3 is misleading regarding the general principles of energy flow.
Thus, the correct answer is option B: 1 and 2 Only.
The statements provided relate to ecological pyramids, specifically biomass and energy pyramids in terrestrial and aquatic ecosystems. Let's evaluate each statement individually.
Statement 1: Pyramid of Biomass in Terrestrial Ecosystems
- In most terrestrial ecosystems, the pyramid of biomass indeed has a large base of primary producers (plants) at the bottom, supporting smaller biomass at higher trophic levels (herbivores and carnivores).
- This statement is correct as it reflects the typical structure of terrestrial food webs.
Statement 2: Inverted Pyramid of Biomass in Aquatic Ecosystems
- In many aquatic ecosystems, particularly in those with high turnover rates (like phytoplankton), the biomass pyramid can be inverted.
- Here, the biomass of primary producers (phytoplankton) may be less than that of the higher trophic levels (zooplankton and fish), especially when considering seasonal changes.
- This statement is also correct.
Statement 3: Inverted Energy Pyramid
- While energy pyramids are typically not inverted because energy is lost at each trophic level (usually about 90% loss), there are rare conditions where they can appear inverted, depending on specific ecological dynamics.
- However, this is uncommon and generally not accepted as a standard characteristic of energy flow in ecosystems.
- Hence, this statement is somewhat misleading and not typically regarded as correct.
Conclusion
Based on the evaluations:
- Statements 1 and 2 are correct.
- Statement 3 is misleading regarding the general principles of energy flow.
Thus, the correct answer is option B: 1 and 2 Only.
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Similar UPSC Doubts
Top Courses for UPSCView all
Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?
Question Description
Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct 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:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct 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:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?.
Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct 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:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct 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:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following statements:1. In most terrestrial ecosystems, the pyramid of biomass typically has a large base of primary producers with smaller trophic levels on top.2. In many aquatic ecosystems, the pyramid of biomass tends to be inverted.3. An energy pyramid can be inverted under certain conditions, similar to the pyramid of biomass.Which of the statements given above is/are correct?a)1 Onlyb)1 and 2 Onlyc)1 and 3 Onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup