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In a comparative study of grassland ecosystem and pond ecosystem, it may be observed that

primary and secondary consumers are similar
the abiotic components are almost similar
the biotic components are almost similar
both biotic and abiotic components are different
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Sal (Shorea robusta) forest is a

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Mass of living matter at a trophic level in an area at any time is called

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Which of the following ecosystems has highest rate of gross primary production?

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The upright pyramid of number is absent in

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An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having

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Which one of the following is not a gaseous biogeochemical cycle in ecosystem?

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Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels?
imaginary pyramid of numbers

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Identify the possible link "A" in the following food chain:Plant → insect → frog → "A" → Eagle

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Succulent plants grow in

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Which one of the following is not a functional unit of an ecosystem?

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