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 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 |
 73%
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%
From NCERT
NEET - 2016
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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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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 |
 82%
From NCERT
NEET - 2016
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Mycorrhizae are the example of:

1. Amensalism

2. Antibiosis

3. Mutualism

4. Fungistasis

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 91%
From NCERT
NEET - 2017
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When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K):
1. when N nears the carrying capacity of the habitat
2. when N/K equals zero
3. when the death rate is greater than the birth rate
4. when N/K is exactly one
Subtopic:  Population: Logistic Growth Model |
 68%
From NCERT
NEET - 2016
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An association of individuals of different species living in the same habitat and having functional interactions is known as:

1. Ecological niche 2. Biotic community
3. Ecosystem 4. Population
Subtopic:  Introduction to Ecology |
From NCERT
NEET - 2015
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