Niche is:
1. All the biological factors in the organism environment
2. The physical space where an organism lives
3. The range of temperature that the organism needs to live
4. The functional role played by the organism where it lives
Subtopic:  Introduction to the Chapter |
 73%
From NCERT
NEET - 2018
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Natality refers to:
1. Death rate
2. Birth rate
3. Number of individuals leaving the habitat
4. Number of individuals entering the habitat

Subtopic:  Population Characters: Natality & Mortality |
 87%
From NCERT
NEET - 2018
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In a growing population of a country:
1. pre-reproductive individuals are more than reproductive individuals.
2. reproductive individuals are less than post-reproductive individuals.
3. reproductive and pre-reproductive individuals are equal in number.
4. pre-reproductive individuals are less than reproductive individuals.
Subtopic:  Population Attributes |
 85%
From NCERT
NEET - 2018
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Which one of the following population interactions is widely used in medical science for the production of antibiotics ?

1. Commensalism
2. Mutualism
3. Parasitism
4. Amensalism

Subtopic:  Population Interactions: Amensalism |
 61%
NEET - 2018
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Mycorrhizae are the example of

(1) fungistasis                 

(2) amensalism

(3) antibiosis                   

(4) mutualism

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 92%
From NCERT
NEET - 2017
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Asymptote in a logistic growth curve is obtained when:

1. K=N

2. K>N

3. K<N

4. The value of 'r' approaches zero

Subtopic:  Population: Logistic Growth Model |
 76%
From NCERT
NEET - 2017
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Gause's principle of competitive exclusion states that
1. Competition for the same resources excludes species having different food preferences
2. No two species can occupy the same niche indefinitely for the same limiting resources
3. Larger organisms exclude smaller ones through competition
4. More abundant species will exclude the less abundant species through competition

Subtopic:  Population Interactions: Competition |
 68%
From NCERT
NEET - 2016
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Which of the following is correct for r-selected species?

1. Large number of progeny with small size

2. Large number of progeny with large size

3. Small number of progeny with small size

4. Small number of progeny with large size

Subtopic:  Life History Variations |
 74%
From NCERT
NEET - 2016
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If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by'+''-' refers to:

1. mutualism

2. amensalism

3. commensalism

4. parasitism

Subtopic:  Population Interactions: Parasitism |
 89%
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NEET - 2016
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The principle of competitive exclusion was stated by?

1. C. Darwin

2. G. F. Gause

3. MacArthur

4. Verhulst and Pearl

Subtopic:  Population Interactions: Competition |
 81%
From NCERT
NEET - 2016
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