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Asymptote in a logistic growth curve is obtained when:

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Important Questions on Organisms and Populations

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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 11
Natality refers to 
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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 12
Niche overlap indicates
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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 13

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do a, b and c represent respectively?

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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 14
Which of the following exhibits mutualism?
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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 15
Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other freezing northern regions move to :
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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 16

The following graph depicts changes in two populations (A and B) of herbivores in a grassy field A possible reason for these changes is that:

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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 17
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in:
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Beta Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>EXERCISE- II (Previous Year Questions)>Q 18
In a hypothetical population of 100 individuals having 'r' = 0.5/female/year, what will be the population size in 6 years (with e=2.72) showing exponential rate of growth?