Select Question Set:
Q. No.A:
Energy flow in ecosystem is bidirectional.
R:
Energy goes on increasing with each and every trophic level.
In the following questions a statement of assertion (A) is followed by a statement
of reason (R).
1. If both Assertion & Reason are true and the
reason is the correct explanation of the assertion, then mark (1)
2.
If both Assertion & Reason are true but the reason is not the correct explanation
of the assertion, then mark (2)
3. If Assertion is true statement
but Reason is false, then mark (3)
4. If both Assertion and Reason
are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Energy Flow | Ecological Pyramids |
91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
An ecosystem which can be easily damaged but can recover if damaging effects stop, will be having
1. Low stability and high resilience
2. High stability and low resilience
3. High stability and high resilience
4. Low stability and low resilience
1. Low stability and high resilience
2. High stability and low resilience
3. High stability and high resilience
4. Low stability and low resilience
Subtopic: Components & Types of Ecosystems | Ecosystem Productivity |
62%
Please attempt this question first.
Hints
Consider the following statements with respect to food chain
A. Removal of 80% tigers from an area resulted in increased growth of vetetation
B. Removal of most of the carnivores resulted in increased growth of vegetation
C. The length of food chain is generally limited to 3-4 tropic levels due to energy loss
D. The length of food chains may vary from 208 trophic levels
Choose the correct answer from the options given below:
1. A, D
2. A, B
3. B, C
4. C, D
A. Removal of 80% tigers from an area resulted in increased growth of vetetation
B. Removal of most of the carnivores resulted in increased growth of vegetation
C. The length of food chain is generally limited to 3-4 tropic levels due to energy loss
D. The length of food chains may vary from 208 trophic levels
Choose the correct answer from the options given below:
1. A, D
2. A, B
3. B, C
4. C, D
Subtopic: Energy Flow |
66%
Please attempt this question first.
Hints
What percentage of photosynthetically active radiation is captured by plants?
1. 2-10%
2. 50%
3. 100%
4. 1-2%
1. 2-10%
2. 50%
3. 100%
4. 1-2%
Subtopic: Ecosystem Productivity |
80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Introduction |
Please attempt this question first.
Hints
At each trophic level, a certain mass of living material at a particular time is known as
1. Dry weight
2. Standing crop
3. Fresh weight
4. Standing state
1. Dry weight
2. Standing crop
3. Fresh weight
4. Standing state
Subtopic: Energy Flow |
90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
A species when defined in terms of the total interactions of all its members with the nonliving and living part of the environment, in a specific area, is known as
1. Biological species concept
2. Ecological species concept
3. Morphological species concept
4. Interactive species concept
1. Biological species concept
2. Ecological species concept
3. Morphological species concept
4. Interactive species concept
Subtopic: Introduction |
Please attempt this question first.
Hints
Arrange the following, starting from first trophic level
A. Molluscs
B. Hydrilla
C. Snake
D. Hawk
E. Fish
Choose the correct answer from the options given below
1. A, B, C, D, E
2. B, A, C, D, E
3. B, A, E , C, D
4. B, A, E, D, C
A. Molluscs
B. Hydrilla
C. Snake
D. Hawk
E. Fish
Choose the correct answer from the options given below
1. A, B, C, D, E
2. B, A, C, D, E
3. B, A, E , C, D
4. B, A, E, D, C
Subtopic: Energy Flow |
74%
Please attempt this question first.
Hints
Find out the correct sequence in hydrosere
A. Hydrilla
B. Oak
C. Scirpus
D. Volvox
E. Pistia
Choose the correct answer from the options given below
1. A, B, C, D, E
2. B, C, D, E, A
3. D, A, E, C, B
4. C, D, E, A, B
A. Hydrilla
B. Oak
C. Scirpus
D. Volvox
E. Pistia
Choose the correct answer from the options given below
1. A, B, C, D, E
2. B, C, D, E, A
3. D, A, E, C, B
4. C, D, E, A, B
Subtopic: Ecological Succession (OLD NCERT) |
Please attempt this question first.
Hints
Which of the following are major natural mechanisms for the breakdown of chemicals in the environment?
A. Degradation by sunlight
B. Auto-halogenation
C. Microbial degradation
D. Auto-phosphorylation
E. Auto-oxidation
Choose the correct answer from the options given below
1. A, C and D only
2. B, D and E only
3. A, C and E only
4. A, B and D only
A. Degradation by sunlight
B. Auto-halogenation
C. Microbial degradation
D. Auto-phosphorylation
E. Auto-oxidation
Choose the correct answer from the options given below
1. A, C and D only
2. B, D and E only
3. A, C and E only
4. A, B and D only
Subtopic: Decomposition | Mineral Cycling & Ecosystem Services (OLD NCERT) |
Please attempt this question first.
Hints
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.