Recent questions tagged ch14

“The energy flow in an ecosystem follows the second law of thermodynamics”. Explain.

asked Jul 11, 2017 by pady_1

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Which of the following ecosystems will be more productive in terms of primary productivity? Justify

asked Jul 11, 2017 by pady_1

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Justify the following statements in terms of ecosystem dynamics. “Nature tends to increase the gro

asked Jul 11, 2017 by pady_1

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The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen

asked Jul 11, 2017 by pady_1

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What are the three types of ecological pyramids. What information is conveyed by each pyramid with r

asked Jul 11, 2017 by pady_1

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<div>What will happen to an ecosystem if:</div><div><br></div><div>a. All producers are removed.</di

asked Jul 11, 2017 by pady_1

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A farmer harvests his crop and expresses his harvest in three different ways.<br><br><div>a. I have

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What are the shortcomings of ecological pyramids in the study of the ecosystem?

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Apart from plants and animals, microbes form a permanent biotic component of an ecosystem. While pla

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Flow of energy through various trophic levels in an ecosystem is uni directional and non cyclic. Exp

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Is aquarium a complete ecosystem?

asked Jul 11, 2017 by pady_1

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Organisms at higher trophic level have less energy available. Comment.

asked Jul 11, 2017 by pady_1

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Primary productivity varies from ecosystem to ecosystem. Explain.

asked Jul 11, 2017 by pady_1

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Poaching of tiger is a burning issue in today's world. What implication would this activity have on

asked Jul 11, 2017 by pady_1

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Human activities interfere with carbon cycle. List any two such activities. 

asked Jul 11, 2017 by pady_1

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What would be the reason for the faster rate of decomposition in the tropics? 

asked Jul 11, 2017 by pady_1

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Climax stage is achieved quickly in secondary succession as compared to primary succession. Why?

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Arrange the following as observed in vertical stratification of a forest : Grass, Shrubby plants, te

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What is common to earthworm, mushroom, soil mites and dung beetle in an ecosystem? 

asked Jul 11, 2017 by pady_1

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Define self sustainability. 

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Give any two examples of xerarch succession. 

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Why the rate of assimilation of energy at the herbivore level is called secondary productivity?&nbsp

asked Jul 11, 2017 by pady_1

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Why are oceans least productive? 

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Is the common edible mushroom an autotroph or a heterotroph? 

asked Jul 11, 2017 by pady_1

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What is the ultimate source of energy for the ecosystem?

asked Jul 11, 2017 by pady_1

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Among bryophytes, lichens and ferns which one is a pioneer species in a xeric succession?

asked Jul 11, 2017 by pady_1

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Name any two organisms which can occupy more than one tropic level in an ecosystem. 

asked Jul 11, 2017 by pady_1

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Justify the pitcher plant as a producer. 

asked Jul 11, 2017 by pady_1

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Name an omnivore which occurs in both grazing food chain and the decomposer food chain. 

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Under what conditions would a articular stage in the process of succession revert back to an earlier

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What does the base tier of the ecological pyramid represent? 

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Name an organism found as secondary carnivore in an aquatic ecosystem. 

asked Jul 11, 2017 by pady_1

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Write the statement "It is necessary to have a password to log on to the server." in the form if $p$ then $q$.

asked Aug 16, 2014 by rvidyagovindarajan_1

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Write the converse and contra positive of the statement "If it is hot outside then you feel thirsty."

asked Aug 16, 2014 by rvidyagovindarajan_1

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Write the converse and contra positive of the statement "I go to the beach whenever it is sunny day."

asked Aug 16, 2014 by rvidyagovindarajan_1

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Write the converse and contra positive of the statement "A positive integer is prime only if it has no divisors other than 1 and itself."

asked Aug 14, 2014 by rvidyagovindarajan_1

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Write the negation of the statement " There exists a number $x$ such that 0<$x$<1."

asked Aug 4, 2014 by rvidyagovindarajan_1

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Write the negation of the statement " For every real number $x$, either $x$ is >1 or <1."

asked Aug 4, 2014 by rvidyagovindarajan_1

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Write the negation of "All cats scratch."

asked Aug 4, 2014 by rvidyagovindarajan_1

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Write the negation of "For every positive real number $x$, the number $x+1$ is also positive."

asked Aug 4, 2014 by rvidyagovindarajan_1

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