Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival? [2021]
Which of the following is not an attribute of a population? [2020]
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Carnivorous animals lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as [2019]
Natality refers to [2018]
Asymptote in a logistic growth curve is obtained when [2017]
When does the growth rate of a population following the logistic model equal zero? [2016]
The logistic model is given as dN/dt = rN(1–N/K)
Gause's principle of competitive exclusion states that: [2016]
In which of the following interactions both partners are adversely affected? [2015 RS]
Most animals that live in deep oceanic waters are: [2015 RS]
A population will not exist in Hardy - Weinberg equilibrium if: [2015 RS]
Most animals are tree-dwellers in a: [2015 RS]
If 20 J of energy is trapped at the producer level, then how much energy will be available to peacock as food in the following chain? [2014]
Plant → Mice → Snake → Peacock
The zone of atmosphere in which the ozone layer is present is called: [2014]
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 extremely cold northern regions move to: [2014]
Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks: [2014]
122 videos|311 docs|196 tests
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122 videos|311 docs|196 tests
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