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The rate of biomass production in terms of energy is expressed as:

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Important Questions on Ecosystem

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 57
The annual net primary productivity of terrestrial surface is           (dry weight) of organic matter.
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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 58

The primary productivity of an ecosystem depends on

A. Available solar radiations.

B. Availability of nutrients in soil.

C. Photosynthetic capacity of producers.

D. Abiotic factors of that area.

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 59

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

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 61
Secondary productivity is rate of formation of new organic matter by
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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 62
The highest net annual productivity occurs in:
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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 63

Read the following statements on the ecosystem and select the correct option.

(a) Cycling of matter takes place between biotic and abiotic components.

(b) The ecosystem can overcome forces that tend to disturb the balance of the ecosystem.

(c) The ecosystem maintains a functional balance or relatively stable state of equilibrium among its various components.

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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 64
Which of the following is true regarding ecosystem?
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Biology Crash Course NEET>Chapter 36 - Ecosystem>Level 2>Q 65

Which one of the following is not a correct match of the term and its description?

(i) Ecosystem The functional unit of nature
(ii) Global ecosystem Entire biosphere
(iii) Aquatic ecosystem Wetland
(iv) Natural ecosystem Crop field