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Which of the following is an example of artificial ecosystem?

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Important Questions on Ecology and Environment

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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Define ecosystem.
HARD
Biology>Ecology>Ecology and Environment>Ecosystem and their Components
A food chain always starts with_____
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
What is ecosystem? Discuss its different components with specific example of pond as an ecosystem.
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as:
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
In an ecosystem the rate of production of organic matter during photosynthesis is termed as:
MEDIUM
Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Describe briefly the biological effects of light on animal reproduction.
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Net primary productivity (NPP) in an ecosystem is
MEDIUM
Biology>Ecology>Ecology and Environment>Ecosystem and their Components

Give a reason for the following.

The equilibrium of a forest ecosystem can be disturbed by the uncontrolled hunting of big predators.

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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Mention four 'Evil Quartet' which cause depletion of biodiversity.
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Who proposed that ecosystem is the symbol of structure and function of nature?
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components

Match the trophic levels with their correct species examples in grassland ecosystem.

(a) Fourth trophic level (i) Crow
(b) Second trophic level (ii) Vulture
(c) First trophic level (iii) Rabbit
(d) Third trophic level (iv) Grass

Select the correct option.

MEDIUM
Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Vertical distribution of different species occupying different levels in a biotic community is known as:
MEDIUM
Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Study the following statements and select the correct ones:
I) In a thermally stratified lake, in winter, the upper layer is known as epilimnion.
II) Animals in a lake that are capable of swimming constitute neuston.
III) The natural interconnections of food chain forms a network called food web.
IV) Energy flow in an ecosystem is unidirectional.
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components

The rate of storage of organic matter which is NOT used by the consumer is ______.

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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Which one of the following ecosystem has the highest annual net primary productivity?
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Soil transported by wind is called
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
Which among the following is not a functional unit of the ecosystem?
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Biology>Ecology>Ecology and Environment>Ecosystem and their Components
The term ecosystem was coined by: