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BIOXII14: ECOSYSTEM

344632 i. Size of organisms finally reduces at higher trophic
ii. More availability of energy at lower trophic level
Statement i and ii are correct for

1 Grazing food chain
2 Detritus food chain
3 Parasitic food chain
4 Both i & ii
BIOXII14: ECOSYSTEM

344633 Assertion :
The detritus food chain (DFC) begins with dead organic matter.
Reason :
Bacteria and fungi meet their energy and nutrient requirements by degrading dead organic matter or detritus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344634 Study the following statements
I. Removal of carnivores resulted in increased herbivores
II. Removal of phytoplanktons resulted in decreased productivity in a lake
III. Removal of tigers from an area resulted in increased growth of vegetation
IV. Removal of decomposers resulted in decreased primary productivity

1 Only one statement is correct
2 Only two statements are correct
3 Only three statements are correct
4 All are correct
BIOXII14: ECOSYSTEM

344635 Stability of ecosystem depends on

1 Number of producers
2 Number of consumers
3 Interactions between producers and consumers
4 None of the above
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BIOXII14: ECOSYSTEM

344632 i. Size of organisms finally reduces at higher trophic
ii. More availability of energy at lower trophic level
Statement i and ii are correct for

1 Grazing food chain
2 Detritus food chain
3 Parasitic food chain
4 Both i & ii
BIOXII14: ECOSYSTEM

344633 Assertion :
The detritus food chain (DFC) begins with dead organic matter.
Reason :
Bacteria and fungi meet their energy and nutrient requirements by degrading dead organic matter or detritus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344634 Study the following statements
I. Removal of carnivores resulted in increased herbivores
II. Removal of phytoplanktons resulted in decreased productivity in a lake
III. Removal of tigers from an area resulted in increased growth of vegetation
IV. Removal of decomposers resulted in decreased primary productivity

1 Only one statement is correct
2 Only two statements are correct
3 Only three statements are correct
4 All are correct
BIOXII14: ECOSYSTEM

344635 Stability of ecosystem depends on

1 Number of producers
2 Number of consumers
3 Interactions between producers and consumers
4 None of the above
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BIOXII14: ECOSYSTEM

344632 i. Size of organisms finally reduces at higher trophic
ii. More availability of energy at lower trophic level
Statement i and ii are correct for

1 Grazing food chain
2 Detritus food chain
3 Parasitic food chain
4 Both i & ii
BIOXII14: ECOSYSTEM

344633 Assertion :
The detritus food chain (DFC) begins with dead organic matter.
Reason :
Bacteria and fungi meet their energy and nutrient requirements by degrading dead organic matter or detritus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344634 Study the following statements
I. Removal of carnivores resulted in increased herbivores
II. Removal of phytoplanktons resulted in decreased productivity in a lake
III. Removal of tigers from an area resulted in increased growth of vegetation
IV. Removal of decomposers resulted in decreased primary productivity

1 Only one statement is correct
2 Only two statements are correct
3 Only three statements are correct
4 All are correct
BIOXII14: ECOSYSTEM

344635 Stability of ecosystem depends on

1 Number of producers
2 Number of consumers
3 Interactions between producers and consumers
4 None of the above
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BIOXII14: ECOSYSTEM

344632 i. Size of organisms finally reduces at higher trophic
ii. More availability of energy at lower trophic level
Statement i and ii are correct for

1 Grazing food chain
2 Detritus food chain
3 Parasitic food chain
4 Both i & ii
BIOXII14: ECOSYSTEM

344633 Assertion :
The detritus food chain (DFC) begins with dead organic matter.
Reason :
Bacteria and fungi meet their energy and nutrient requirements by degrading dead organic matter or detritus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344634 Study the following statements
I. Removal of carnivores resulted in increased herbivores
II. Removal of phytoplanktons resulted in decreased productivity in a lake
III. Removal of tigers from an area resulted in increased growth of vegetation
IV. Removal of decomposers resulted in decreased primary productivity

1 Only one statement is correct
2 Only two statements are correct
3 Only three statements are correct
4 All are correct
BIOXII14: ECOSYSTEM

344635 Stability of ecosystem depends on

1 Number of producers
2 Number of consumers
3 Interactions between producers and consumers
4 None of the above