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Essentiale: Organisms and Populations
Iris: Organisms and Populations
Invictus: Organisms and Populations
Organisms and Populations - Mini Q Bank
Organisms and Populations - Essentiale - (New NCERT)
Organisms and Populations - Iris - (New NCERT)
Q. No.

Many freshwater animals cannot live for long in sea water and vice versa because of:
1. Buoyancy related problems
2. Lack of impermeable skins
3. Thermolabile enzymes
4. Osmotic considerations

Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 91%

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Evolutionary biologists believe that “success” of mammals is largely due to their ability to:
1. Produce a large number of progeny
2. Live for a longer life span
3. Maintain a constant body temperature
4. Nurture young ones for longer periods

Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 87%

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While heat gain or heat loss is the function of ________, heat production is the function of _______ of the body of an animal.
1. Volume; Surface area
2. Surface area; Volume
3. Volume; Volume
4. Surface area; Surface area

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 78%

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Kangaroo rat is capable of meeting all its water requirements through:
1. Storing water when available
2. Dry seeds and foliage
3. Metabolic water
4. Burrowing deep to get water

Subtopic:  Adaptations (OLD NCERT) |
 79%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Temperature is most important ecologically relevant environmental factor.
Reason (R): Temperature affects the kinetics of the enzymes.
 In the light of the above statements, choose the most appropriate answer from the options given below :
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. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 85%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Among the red, green, and brown algae that inhabit the sea, brown algae are likely to be found in the deepest water.
Reason (R): In addition to chlorophyll, red algae also have an accessory pigment that is fucoxanthin.
In the light of the above statements, choose the most appropriate answer from the options given below :
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. Both (A) and (R) are false.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 69%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): An overwhelming majority of animals and nearly all plants cannot maintain a constant internal environment.
Reason (R): These animals and plants are simply conformers.
 In the light of the above statements, choose the most appropriate answer from the options given below :
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. Both (A) and (R) are false.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Ice fish is able to thrive in Antarctic water where the temperature is always below zero.
Reason (R): They have a special haemoglobin molecule that has very high affinity for oxygen.
 In the light of the above statements, choose the most appropriate answer from the options given below :
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. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Adaptations (OLD NCERT) |
 57%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion(A): A population that fits the logistic growth model increases more rapidly at intermediate size rather than at relatively small and large sizes.
Reason (R): The population growth rate decreases dramatically as the population size approaches the carrying capacity.
In the light of the above statements, choose the most appropriate answer from the options given below :
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.  Both (A) and (R) are false.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Population: Logistic Growth Model |

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): In every species, there are trade- offs between survival and reproductive traits.
Reason (R): Natural selection favors traits that improve an organism’s chances of survival and reproductive success.
In the light of the above statements, choose the most appropriate answer from the options given below :
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. Both (A) and (R) are False.
Subtopic:  Introduction to Ecology |
 66%

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Select Question Set:
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Essentiale: Organisms and Populations
Iris: Organisms and Populations
Invictus: Organisms and Populations
Organisms and Populations - Mini Q Bank
Organisms and Populations - Essentiale - (New NCERT)
Organisms and Populations - Iris - (New NCERT)
Q. No.

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