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ScienceMedium
Biology
Ecology

Which bacteria is found in the root nodules of leguminous plants?

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ScienceMedium
Biology
Ecology

The transfer of energy from one trophic level to another is governed by which law?

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ScienceMedium
Biology
Ecology

What is the ultimate goal of ecological conservation?

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ScienceHard
Biology
Ecology

A specific bird species follows a herd of cattle to eat insects stirred up by the cattle's movement. This bird is neither helping nor harming the cattle. This is:

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ScienceHard
Biology
Ecology

In a forest ecosystem, if all the tigers are removed, what will be the immediate impact on the deer population?

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ScienceHard
Biology
Ecology

Which of these correctly represents the Net Primary Productivity (NPP)?

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ScienceHard
Biology
Ecology

What is the phenotypic effect of 'Biological Magnification' on predatory birds like eagles in the past?

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ScienceHard
Biology
Ecology

In the context of the Nitrogen Cycle, identify the process occurring in waterlogged soils where nitrates are converted back to Nitrogen gas.

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ScienceHard
Biology
Ecology

Which ecological concept explains why there are usually no more than 4 or 5 trophic levels in a food chain?

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ScienceHard
Biology
Ecology

What is the main difference between a food chain and a food web?

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ScienceHard
Biology
Ecology

Which of the following is true regarding 'Secondary Succession'?

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ScienceHard
Biology
Ecology

Identify the 'Inverted Pyramid of Biomass' which is characteristic of:

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ScienceHard
Biology
Ecology

The Gause's Principle of 'Competitive Exclusion' states that:

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ScienceHard
Biology
Ecology

Calculate the energy at the 4th trophic level if the sun provides 1,000,000 J of energy and producers capture only 1% of it.

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ScienceHard
Biology
Ecology

Which of these is a density-independent factor limiting population growth?

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ScienceHard
Biology
Ecology

In a pond ecosystem, 'Zooplankton' occupy which trophic level?

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ScienceHard
Biology
Ecology

What is 'Ecological Efficiency'?

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ScienceHard
Biology
Ecology

Which of the following is an example of an 'endemic species' of Nepal?

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ScienceHard
Biology
Ecology

In an ecological pyramid, 'Saprophytes' are generally:

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ScienceHard
Biology
Ecology

The carrying capacity of a population is determined by its:

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