Given figure represents two food chains (X and Y) linked together to form a food web. Identify the types of food chains X and Y and the organism A that interconnects these food chains

X Y A Grazing food chain Detritus food chain Detritivore

X Y A Detritus food chain Grazing food chain Bacterium

X Y A Detritus food chain Grazing food chain Detritivore

X Y A Grazing food chain Detritus food chain Grasshopper

Choose the right sequence of hydrarch succession from the following:

phytoplankton - submerged plant stage - submerged free floating stage - reed swamp stage - marsh meadow stage - scrub stage - forest

phytoplankton - reed swamp stage submerged plant stage - marsh meadow stage - submerged free floating stage - scrub stage - forest

phytoplankton - submerged free floating stage - reed swamp stage - submerged plant stage-marsh meadow stage - scrub stage - forest

phytoplankton - reed swamp stagesubmerged plant stage - submerged free floating stage- marsh meadow stage -scrub stage - forest

Identify the correct statement from the following.

Decomposition events such as fragmentation, leaching, catabolism, humification and mineralisation all occur simultaneously

In terrestrial ecosystem Grazing food chain is the major one

In aquatic ecosystem Detritus food chain is the major one

Annual net primary productivity from sea is around 55 Million tons

In an ecosystem, the population of:

Primary producers are larger than primary consumers

Secondary consumers are largest

Primary consumers out numbers primary producers

Primary consumers are least dependent upon primary producers

Assertion ( A ): A primary succession is more common than secondary succession. Reason ( R ): Biogeochemical cycling is absent in secondary succession.

Both A and R are correct and R is the correct explanation for A

Both A and R are correct and R is not correct explanation for A

E M B I B E

Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 24

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IMPORTANT

Earn 100

The secondary productivity means

56% studentsanswered this correctly

Important Questions on Ecosystem

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 25

Net primary productivity

(NPP)

in an ecosystem is

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 26

The driving force of the ecosystem is

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 27

Vertical distribution of different species occupying different levels in an ecosystem is called

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 28

Which one of the following is not used for construction of ecological pyramids?

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 29

Which of the following includes ecosystem services?

A. Purification of air and water by forests.

B. Forests mitigate drought and flood.

C. Forests act as a storehouse of carbon.

D. Forests influence the hydrological cycle.

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 30

Select the odd one with respect to the functional aspect of ecosystem.

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 31

If $20 J$ of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?

Plant $\to$ Mice $\to$ Snake $\to$ Peacock

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 32

Given figure represents two food chains (X and Y) linked together to form a food web.
Question Image
Identify the types of food chains X and Y and the organism A that interconnects these food chains

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