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 32

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IMPORTANT

Earn 100

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
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	Detritivore

X	Y	A
Grazing food chain	Detritus food chain	Grasshopper

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Important Questions on Ecosystem

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 33

In a forest community, stratification takes place when:

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 34

Identify the possible link $“ A ”$ in the following food chain :

Plant $\to$ Insect $\to$ Frog $\to$ $“ A ” \to$ Eagle

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 35

Leaching is one of the important steps of decomposition. During leaching, which of the following nutrients go down into the soil horizon?

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

What kind of pyramid is represented in the given figure?
Question Image

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 37

The amount of organic matter (biomass) accumulated in any unit time is called

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 38

Ecosystem has two components:

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 39

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

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 1>Q 40

An average price tag put by Robert Constanza and his colleagues for ecosystem services is

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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

Important Questions on Ecosystem

Learn and Prepare for any exam you want !

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