The interaction where one species is benefitted and the other is neither benefitted nor harmed is called:
1. mutualism
2. commensalism
3. competition
4. amensalism
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Response of Organisms to Abiotic Factors (OLD NCERT) |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
| Assertion (A): | Very small animals are rarely found in polar regions. |
| Reason (R): | Small animals have a larger surface area relative to their volume. |
| 1. | Both (A) and (R) are true and (R) correctly explains the (A). |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are false. |
| 4. | Both (A) and (R) are true but (R) does not correctly explain the (A). |
Subtopic: Response of Organisms to Abiotic Factors (OLD NCERT) |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
If the population pyramid of an associated population has an extremely broad base, it is:
| 1. | a rapidly expanding population |
| 2. | a stable population |
| 3. | a population where there were more old individuals than young individuals |
| 4. | a population with more males than females |
Subtopic: Population Attributes |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
A constant internal environment, in spite of an ever-changing external environment, cannot be maintained by:
| 1. | 10 per cent of animals and some plants |
| 2. | 50 per cent of animals and nearly all plants |
| 3. | 99 per cent of animals and nearly all plants |
| 4. | 100 per cent of animals and nearly 1 per cent of plants |
Subtopic: Abiotic Factors: Temperature (OLD NCERT) |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Cryptic colouration is:
| 1. | warning colouration by poisonous organisms. |
| 2. | protective resemblance with the environment. |
| 3. | lack of effect of exposure of sunlight on skin colour. |
| 4. | contrasting skin colours in males and females of a species. |
Subtopic: Population Interactions: Predation |
75%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion (A): | The problem of predation is particularly severe for plants than for animals. |
| Reason (R): | Plants function as producers in an ecosystem. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True and but (R) does not correctly explain (A) |
| 4. | Both (A) and (R) are False |
Subtopic: Population Interactions: Predation |
71%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Desert lizards manage to keep their body temperature fairly constant by:
| 1. | increased sweating |
| 2. | evaporative cooling from tongue |
| 3. | behavioural means |
| 4. | producing a dilute urine |
Subtopic: Adaptations (OLD NCERT) |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two given statements:
1. Statement I is correct; Statement II is incorrect
2. Statement I is correct; Statement II is correct
3. Statement I is incorrect; Statement II is incorrect
4. Statement I is incorrect; Statement II is correct
| Statement I: | Age structure can indicate whether a population is increasing, stable, or declining. |
| Statement II: | In general terms, a population with a very broad base would be expected to be stable. |
2. Statement I is correct; Statement II is correct
3. Statement I is incorrect; Statement II is incorrect
4. Statement I is incorrect; Statement II is correct
Subtopic: Age Pyramid |
77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following is an example of mutualism?
1. Cuckoo laying eggs in nest of a crow
2. Cattle Egret and grazing cattle
3. Sea Anemone and Clownfish
4. Female wasp and fig species
1. Cuckoo laying eggs in nest of a crow
2. Cattle Egret and grazing cattle
3. Sea Anemone and Clownfish
4. Female wasp and fig species
Subtopic: Population Interactions: Parasitism | Population Interactions: Amensalism | Population Interactions: Commensalism, Protocooperation & Mutualism |
89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.