Ecosystem: Structure and Function
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
BIOXII14: ECOSYSTEM

344592 Example of man-made ecosystem are?

1 Crop field
2 Aquarium
3 Desert
4 Both 1 and 2
BIOXII14: ECOSYSTEM

344593 Read the following statements and choose the correct set of options w.r.t ecosystem
I. Various ecosystem are interconnected by flow of energy and transfer of materials
II. It is self sustained and self regulated segment of nature
III. Energy flow is always cyclic while flow of nutrients in unidirections
IV. Density of ecosystem is governed by degree of biogeochemical cycling and the amount of nutrients

1 I, II and IV are correct
2 I, II and III are correct
3 Only III is correct
4 III and IV are incorrect
BIOXII14: ECOSYSTEM

344594 Statement A :
The annual net primary productivity of the whole biosphere is approximately 170 billion kilogram (dry weight) of organic matter.
Statement B :
Despite occupying about 70 per cent of the surface, the productivity of the oceans are only 55 million tons.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII14: ECOSYSTEM

344595 Assertion :
A constant input of solar energy is the basic requirement for any ecosystem to function and sustain.
Reason :
Autotrophs i.e. producers use solar energy for synthesis of food.

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

344592 Example of man-made ecosystem are?

1 Crop field
2 Aquarium
3 Desert
4 Both 1 and 2
BIOXII14: ECOSYSTEM

344593 Read the following statements and choose the correct set of options w.r.t ecosystem
I. Various ecosystem are interconnected by flow of energy and transfer of materials
II. It is self sustained and self regulated segment of nature
III. Energy flow is always cyclic while flow of nutrients in unidirections
IV. Density of ecosystem is governed by degree of biogeochemical cycling and the amount of nutrients

1 I, II and IV are correct
2 I, II and III are correct
3 Only III is correct
4 III and IV are incorrect
BIOXII14: ECOSYSTEM

344594 Statement A :
The annual net primary productivity of the whole biosphere is approximately 170 billion kilogram (dry weight) of organic matter.
Statement B :
Despite occupying about 70 per cent of the surface, the productivity of the oceans are only 55 million tons.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII14: ECOSYSTEM

344595 Assertion :
A constant input of solar energy is the basic requirement for any ecosystem to function and sustain.
Reason :
Autotrophs i.e. producers use solar energy for synthesis of food.

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

344592 Example of man-made ecosystem are?

1 Crop field
2 Aquarium
3 Desert
4 Both 1 and 2
BIOXII14: ECOSYSTEM

344593 Read the following statements and choose the correct set of options w.r.t ecosystem
I. Various ecosystem are interconnected by flow of energy and transfer of materials
II. It is self sustained and self regulated segment of nature
III. Energy flow is always cyclic while flow of nutrients in unidirections
IV. Density of ecosystem is governed by degree of biogeochemical cycling and the amount of nutrients

1 I, II and IV are correct
2 I, II and III are correct
3 Only III is correct
4 III and IV are incorrect
BIOXII14: ECOSYSTEM

344594 Statement A :
The annual net primary productivity of the whole biosphere is approximately 170 billion kilogram (dry weight) of organic matter.
Statement B :
Despite occupying about 70 per cent of the surface, the productivity of the oceans are only 55 million tons.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII14: ECOSYSTEM

344595 Assertion :
A constant input of solar energy is the basic requirement for any ecosystem to function and sustain.
Reason :
Autotrophs i.e. producers use solar energy for synthesis of food.

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

344592 Example of man-made ecosystem are?

1 Crop field
2 Aquarium
3 Desert
4 Both 1 and 2
BIOXII14: ECOSYSTEM

344593 Read the following statements and choose the correct set of options w.r.t ecosystem
I. Various ecosystem are interconnected by flow of energy and transfer of materials
II. It is self sustained and self regulated segment of nature
III. Energy flow is always cyclic while flow of nutrients in unidirections
IV. Density of ecosystem is governed by degree of biogeochemical cycling and the amount of nutrients

1 I, II and IV are correct
2 I, II and III are correct
3 Only III is correct
4 III and IV are incorrect
BIOXII14: ECOSYSTEM

344594 Statement A :
The annual net primary productivity of the whole biosphere is approximately 170 billion kilogram (dry weight) of organic matter.
Statement B :
Despite occupying about 70 per cent of the surface, the productivity of the oceans are only 55 million tons.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII14: ECOSYSTEM

344595 Assertion :
A constant input of solar energy is the basic requirement for any ecosystem to function and sustain.
Reason :
Autotrophs i.e. producers use solar energy for synthesis of food.

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.