The population of Ukraine today is most likely to be affected by:
1.
Natality
2.
Mortality
3.
Immigration
4.
Emigration
Subtopic: Â Population Characters: Age Structure & Migration |
 58%
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Predators:
| 1. | act as conduits for energy transfer across trophic levels |
| 2. | do not include herbivores in broad ecological context |
| 3. | indiscriminately kill their prey |
| 4. | have a very high biotic potential |
Subtopic: Â Population Interactions: Predation |
 88%
From NCERT
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A form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both is called as:
| 1. | Mullerian mimicry | 2. | Batesian mimicry |
| 3. | Aposematism | 4. | Camouflage |
Subtopic: Â Population Interactions: Predation |
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Fishes living in freshwater:
1. drink lot of water, pass lot of urine and constantly lose salt to the outside
2. do not drink water, pass lot of urine and constantly pick salt actively from the outside
3. do not drink water, pass highly concentrated urine and constantly pick salt actively from the outside
4. drink water, pass highly concentrated urine and constantly lose salt actively to the outside
1. drink lot of water, pass lot of urine and constantly lose salt to the outside
2. do not drink water, pass lot of urine and constantly pick salt actively from the outside
3. do not drink water, pass highly concentrated urine and constantly pick salt actively from the outside
4. drink water, pass highly concentrated urine and constantly lose salt actively to the outside
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Consider the two statements:
| I: | Haemoglobin in humans adapted to very high altitudes has a lower binding affinity for oxygen than that found in humans living at the sea level. |
| II: | Lower affinity of haemoglobin to oxygen means more oxygen can bind to haemoglobin even at low partial pressures |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | Both I and II are incorrect |
Subtopic: Â Adaptations (OLD NCERT) |
From NCERT
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The relationship between Nitrosomonas and Nitrobacter can be best described as:
1. Mutualism
2. Commensalism
3. Competition
4. Amensalism
1. Mutualism
2. Commensalism
3. Competition
4. Amensalism
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Consider the two given statements:
| I: | The life cycles of endoparasites are more complex than that of the ectoparasites. |
| II: | The morphological and anatomical features of endoparasites are greatly simplified. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | Both I and II are incorrect |
Subtopic: Â Population Interactions: Parasitism |
 53%
From NCERT
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According to the ISFR [India State of Forest Report] 2021, what percent of total geographic area of India is the forest cover?
1. 21.7
2. 33.33
3. 50
4. 66.66
1. 21.7
2. 33.33
3. 50
4. 66.66
 61%
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Temperature is the most important environmental factor for organisms because:
| 1. | it affects enzyme kinetics |
| 2. | its availability is closely linked to the availability of light |
| 3. | it causes more water to be available in oceans |
| 4. | vast majority of organisms are eurythermals |
Subtopic: Â Abiotic Factors: Temperature (OLD NCERT) |
 81%
From NCERT
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For which of the following animals will thermoregulation be the most energetically expensive?
1. Elephant
2. Humming-bird
3. Rabbit
4. Horse
1. Elephant
2. Humming-bird
3. Rabbit
4. Horse
Subtopic: Â Abiotic Factors: Temperature (OLD NCERT) |
 83%
From NCERT
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