Assertion(A): An individual may have births and deaths, but a population has birth rates and death rates.
Reason(R): In a population, the rates are expressed as change in numbers (increase or decrease) with respect to members of the population.
Choices for Assertions and reasons:
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.
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Subtopic: Population Dynamic |
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Assertion(A): Population ecology is an important area of ecology.
Reason(R): Evolutionary changes take place at the population level.
Choices for Assertions and reasons:
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.
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Subtopic: Introduction to Ecology |
63%
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Assertion(A): Population ecology is an important area of ecology.
Reason(R): it links ecology to population genetics and diversity.
Choices for Assertions and reasons:
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.
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Subtopic: Introduction to Ecology |
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Assertion(A): When certain exotic species are introduced into a geographical area, they become invasive and start spreading fast.
Reason(R): The invaded land does not have its natural competitors.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Competition |
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Assertion(A): In a field experiment, when all the starfish were removed from an enclosed intertidal area, more than 10 species of invertebrates became extinct within a year.
Reason(R): This happened due to intraspecific competition.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Competition |
63%
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Assertion(A): Monarch butterfly is highly tasteful to its predator.
Reason(R): It has a special chemical that is acquired in its caterpillar stage.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Predation |
71%
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Assertion(A): Plants are more affected by their predators compared to animals.
Reason(R): Plants cannot run away from their predators while animals can.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Predation |
93%
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Assertion(A): A species shows a dramatic increase in its population when its competing species is removed.
Reason(R): The competing species is competitively superior species.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Competition |
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Assertion(A): The life cycles of endoparasites are more complex.
Reason(R): Endoparasites have very less specialization.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Parasitism |
75%
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Assertion(A): Egrets always forage close to cattle.
Reason(R): They depend on cattle's movement by which soil insects get stirred up & flushed out and egrets get their food (soil insects) easily.
Choices for Assertions and reasons:
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.
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Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
92%
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