Recent questions tagged medium

Who showed the phenomenon of resource partitioning :-

asked Mar 28, 2014 by sreemathi.v

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Which of the following is least-affected by competition:-

asked Mar 28, 2014 by sreemathi.v

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Which of the following is incorrect about predation:-

asked Mar 28, 2014 by sreemathi.v

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For a newly colourised habitat,which factors affects the population density the most :

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Natural selection operates at the level of :-

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Relationship exhibited by a cuckoo laying its eggs in crow's nest is :-

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Copepods are ectoparasites on :-

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Exponential growth occurs when there is :-

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Which group of vertebrates comprises the highest number of endangered species:-

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Red data book provides data on :-

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Which of the following is best indicator of $SO_2$ pollution:-

asked Mar 28, 2014 by sreemathi.v

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Hotspots are regions of high

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All are in-situ efforts except :-

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The most important reason for decrease in biodiversity is :-

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Biodiversity :-

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Approximately 50% of total would species are present on:-

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Which of the following region has maximum diversity?

asked Mar 28, 2014 by sreemathi.v

2 answers

IUCN is also called as

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Sum total of populations of the same kind of organisms constitute :-

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Pyramid of numbers deals with the number of :-

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Carrying capacity of a population is determined by its:-

asked Mar 28, 2014 by sreemathi.v

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Poineer in xerarch succession is :-

asked Mar 28, 2014 by sreemathi.v

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Enzymes belong to which class of compounds?

asked Mar 27, 2014 by thanvigandhi_1

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A monoatomic gas expands at constant pressure on heating . The percentage of heat supplied used for external work is

asked Mar 27, 2014 by yamini.v

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Statement 1: In the titration of $Na_2CO_3$ with $Hcl$ using methyl orange indicator, the volume required at the equivalence point is twice that of the acid required using phenolphthalein indicator Statement 2: Two moles of $HCl$ are required for the complete neutralization of one mole of $Na_2CO_3$ .

asked Mar 27, 2014 by meena.p

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A gas is heated at constant pressure . The fraction of heat supplied used for external work expressed in terms of the adiabatic index is

asked Mar 27, 2014 by yamini.v

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A closed vessel contains 8 g of oxygen and 7 g of nitrogen . The total pressure is 10 atm at a given temperature . If now oxygen is absorbed by introducing a suitable absorbent , the pressure of the remaining gas is atm will be

asked Mar 27, 2014 by yamini.v

1 answer

All the statements are correct regarding succession except :-

asked Mar 27, 2014 by sreemathi.v

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Succession initiated an large sand deposits of deserts is called:-

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Biotic potential is counteracted by :-

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species that occur in different geographical regions seperated by special barriers are :-

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Trophic levels are formed by :-

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A current carrying square loop is placed near an infinitely long current carrying wire. The torque acting on the loop is

asked Mar 27, 2014 by meena.p

1 answer

Source of energy in an ecosystem is :-

asked Mar 27, 2014 by sreemathi.v

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An eco system must have a continuous external source of

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Ecotype is a type of species in which environmentally induced variations are :-

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Autoecology deals with :-

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Ecology deals with the study of

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Which is an effect of global warming?

asked Mar 27, 2014 by sreemathi.v

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The functioning of an ecosystem is governed by :-

asked Mar 27, 2014 by sreemathi.v

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Which of the following is most productive?

asked Mar 27, 2014 by sreemathi.v

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Which type of pyramid shows biotic potential of ecosystem?

asked Mar 27, 2014 by sreemathi.v

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In which condition nutrient retention (Bio mass) is higher in case of young growing forest?

asked Mar 27, 2014 by sreemathi.v

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Which of the following is not correct?

asked Mar 27, 2014 by sreemathi.v

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Which of the following expected to have the highest value (in gm/m$^2$ yr) in a grassland?

asked Mar 27, 2014 by sreemathi.v

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Which is correct for threatened (T) species?

asked Mar 27, 2014 by sreemathi.v

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Ozone is gaseous " secondary " air pollutant,because:-

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The share of CFC in green house effect is :-

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The aim of earth summit held at rio- de- janeiro in 1992:-

asked Mar 27, 2014 by sreemathi.v

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Which is not a positive soil pollution:-

asked Mar 27, 2014 by sreemathi.v

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