Chapter 11: Organisms and Populations MCQs | biology Class 12 CBSE

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Chapter 11: Organisms and Populations MCQs | biology Class 12 CBSE | ByteNotes.in

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Question 1

Objective

Which of the following is NOT a population attribute?

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Question 2

Objective

If 8 new lotus plants are added to an existing population of 20, the birth rate per year is:

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Question 3

Objective

An age pyramid with a broad base and narrow apex indicates a population that is:

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Question 4

Objective

Which of the following parameters is used as a measure of population density when the organisms are too large or counting is impractical?

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Question 5

Objective

The intrinsic rate of natural increase (r) in a population is represented by:

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Question 6

Objective

Exponential population growth produces which type of curve when population size (N) is plotted against time?

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Question 7

Objective

The Verhulst-Pearl logistic growth equation is:

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Question 8

Objective

In a logistic growth model, what does 'K' represent?

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Question 9

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Which of the following organisms breeds only once in its lifetime?

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Question 10

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Organisms that breed many times during their lifetime are called:

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Question 11

Objective

Which interspecific interaction is represented by the notation (+/–)?

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Question 12

Objective

Which of the following is an example of commensalism?

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Question 13

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The interaction between a clown fish and sea anemone is best described as:

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Question 14

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Prickly pear cactus introduced in Australia was finally controlled by introducing:

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Question 15

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The Monarch butterfly acquires its distasteful chemical by feeding on a poisonous weed during its:

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Question 16

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Which of the following plants uses thorns as a morphological defence against herbivores?

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Question 17

Objective

Calotropis deters herbivores by producing:

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Question 18

Objective

Gause's Competitive Exclusion Principle states that two closely related species competing for the same resources:

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Question 19

Objective

The Abingdon tortoise in the Galapagos Islands became extinct after the introduction of which animal?

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Question 20

Objective

In Connell's rocky shore experiment in Scotland, the smaller barnacle Chathamalus was excluded from the intertidal zone by:

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Chapter 11: Organisms and Populations | MCQs

Which of the following is NOT a population attribute?

If 8 new lotus plants are added to an existing population of 20, the birth rate per year is:

An age pyramid with a broad base and narrow apex indicates a population that is:

Which of the following parameters is used as a measure of population density when the organisms are too large or counting is impractical?

The intrinsic rate of natural increase (r) in a population is represented by:

Exponential population growth produces which type of curve when population size (N) is plotted against time?

The Verhulst-Pearl logistic growth equation is:

In a logistic growth model, what does 'K' represent?

Which of the following organisms breeds only once in its lifetime?

Organisms that breed many times during their lifetime are called:

Which interspecific interaction is represented by the notation (+/–)?

Which of the following is an example of commensalism?

The interaction between a clown fish and sea anemone is best described as:

Prickly pear cactus introduced in Australia was finally controlled by introducing:

The Monarch butterfly acquires its distasteful chemical by feeding on a poisonous weed during its:

Which of the following plants uses thorns as a morphological defence against herbivores?

Calotropis deters herbivores by producing:

Gause's Competitive Exclusion Principle states that two closely related species competing for the same resources:

The Abingdon tortoise in the Galapagos Islands became extinct after the introduction of which animal?

In Connell's rocky shore experiment in Scotland, the smaller barnacle Chathamalus was excluded from the intertidal zone by:

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