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Q. No.What is incorrect about ecosystem?
1.
It can vary from small sized pond to large sized sea
2.
It may be anthropogenic in origin
3.
It may be temporary or Permanent
4.
It involves the function of flow of energy but not recycling of nutrients
Subtopic: Introduction |
86%
From NCERT
NEET - 2024
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Given below are two statements
In light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
| Statement I: | The rate of decomposition is not related to chemical composition of detritus and climatic factors. |
| Statement II: | In a particular climatic condition, decomposition rate is faster if detritus is rich in lignin and chitin. |
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
Subtopic: Decomposition |
83%
From NCERT
NEET - 2024
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Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-III, B-IV, C-II, D-I
3. A-III, B-II, C-IV, D-I
4. A-II, B-III, C-IV, D-I
| List-I | List-II | ||
| A. | Tertiary consumer | I. | Grass |
| B. | Secondary consumer | II. | Lion |
| C. | Primary consumer | III. | Wolf |
| D. | Primary producer | IV. | Goat |
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-III, B-IV, C-II, D-I
3. A-III, B-II, C-IV, D-I
4. A-II, B-III, C-IV, D-I
Subtopic: Ecological Flow |
88%
From NCERT
NEET - 2024
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In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is \(100 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1},\) what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
1. \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\)
2. \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
3. \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
4. \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\)
1. \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\)
2. \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
3. \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
4. \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\)
Subtopic: Ecosystem Productivity | Energy Flow |
From NCERT
NEET - 2024
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Assertion(A): Decomposition process is slower if detritus is rich in lignin and chitin
Reason(R): Decomposition is largely an oxygen requiring process
Reason(R): Decomposition is largely an oxygen requiring process
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A) |
| 3. | (A) is true, but (R) is false |
| 4. | (A) is false, but (R) is true |
Subtopic: Decomposition |
70%
From NCERT
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The primary productivity in an ecosystem is expressed as:
1. \(\text {gm}^{-2}~ \text { yr}^{-1}\)
2. \(\text {gm}^{-2}~ \text { yr}\)
3. \(\text {kcal m}^{-2}~ \text { yr}^{-1}\)
4. \(\text {kcal}{}~ \text { m}^{-2}\)
1. \(\text {gm}^{-2}~ \text { yr}^{-1}\)
2. \(\text {gm}^{-2}~ \text { yr}\)
3. \(\text {kcal m}^{-2}~ \text { yr}^{-1}\)
4. \(\text {kcal}{}~ \text { m}^{-2}\)
Subtopic: Ecosystem Productivity |
From NCERT
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An inverted Pyramid of biomass is represented by:
1. Aquatic ecosystem
2. Ecosystem of a big tree
3. Grassland ecosystem
4. Tropical fresh ecosystem
1. Aquatic ecosystem
2. Ecosystem of a big tree
3. Grassland ecosystem
4. Tropical fresh ecosystem
Subtopic: Introduction | Ecosystem Productivity |
75%
From NCERT
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Arrange these in successive levels of biological organisation from microlevel to global scale
A. Biosphere
B. Communities
C. Atoms
D. Organs
E. Cells
Choose the correct answer from the options given below
1. C, E, D, B, A
2. C, A, E, D, B
3. A, B, D, C, E
4. A, B, C, E, D
A. Biosphere
B. Communities
C. Atoms
D. Organs
E. Cells
Choose the correct answer from the options given below
1. C, E, D, B, A
2. C, A, E, D, B
3. A, B, D, C, E
4. A, B, C, E, D
Subtopic: Introduction |
83%
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The presence of diversity at the junction of territories to two different habitats is known as?
1. bottleneck effect
2. edge effect
3. junction effect
4. Pasteur effect
1. bottleneck effect
2. edge effect
3. junction effect
4. Pasteur effect
Subtopic: Components & Types of Ecosystems |
74%
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The presence of diversity at the junction of territories of two different habitats is known as?
1. bottleneck effect
2. edge effect
3. junction effect
4. Pasteur effect
1. bottleneck effect
2. edge effect
3. junction effect
4. Pasteur effect
Subtopic: Components & Types of Ecosystems |
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