Ecosystem PYQs - Last 5 Years

Which of the following statements are Correct?
(a) Energy flow from producers to consumers is unidirectional
(b) Energy pyramid can never be inverted
(c) Transfer of energy follows the $1 \%$ law
Choose the correct answer from the options g...

Which of the following are primary consumers in a food chain?

Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for:

\(\text { Match List I with List II: }\)


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Which of the following is the unit of productivity of an Ecosystem?

Given below are two statements:

Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers.

Statement II: Ecosystems are exempted from 2nd law of thermodynamics.

In the light of the above stateme...

Who is known as the father of Ecology in India?

Given below are two statements:
Statement I: The primary source of energy in an ecosystem is solar energy.
Statement II : The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP...

Consider the pyramid of energy of an ecosystem given below:

If T\(_4\) is equivalent to \(1000 \mathrm{~J}\), what is the value at \(\mathrm{T}_1\) ?

Which one of the following is not a limitation of ecological pyramids?

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is \(100 x\left(\mathrm{kcal} \mathrm{~m}^{-2}\right) \mathrm{yr}^{-1}\), what would be the GPP (Gross Primary Productivity) of the third trophic level of the same...

The species of plants that plays a vital role in controlling the relative abundance of other species in a community is called _________.

The amount of nutrients such as carbon, nitrogen, potassium and calcium present in the soil at any given time is referred to as :

Match List - I with List - II

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Match List I with List II:

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Which one of the following statements is NOT correct?

In the equation GPP \(-\) R = NPP
GPP is Gross Primary Productivity
NPP is Net Primary Productivity
R here is __________.

Identify the correct statements :
A. Detrivores perform fragmentation.
B. The humus is further degraded by some microbes during mineralization.
C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process cal...

Two butterfly species are competing for the same nectar of a flower in a garden. To survive and coexist together, they may avoid competition in the same garden by :

The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called

The species that come to appear in bare area are called

The pioneer species in a hydrarch succession are

All successions irrespective of the habitat proceed to which type of climax community?

Detritivores breakdown detritus into smaller particles. This process is called :

Which one of the following will accelerate phosphorus cycle?

Given below are two statements:
Statement I : Decomposition is a process in which the detritus is degraded into simpler substances by microbes.
Statement II : Decomposition is faster if the detritus is rich in lignin and chitin.
In the ligh...