1,015 Questions

Biology

Practice Biology MCQs from the Science syllabus.

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ScienceHard
Biology
Ecology

'Eutrophication' leads to the depletion of which substance in water?

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ScienceHard
Biology
Ecology

What is the function of 'Aerenchyma' in hydrophytes?

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ScienceHard
Biology
Ecology

The 'Gaia Hypothesis' suggests that:

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ScienceHard
Biology
Ecology

What is the 'Deep Ecology' movement?

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ScienceHard
Biology
Ecology

Which of these describes an 'Ectotherm'?

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ScienceHard
Biology
Ecology

In a food web, if the primary productivity is 1000 units, how much energy reaches the secondary consumers?

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ScienceHard
Biology
Ecology

What is 'Character Displacement' a result of?

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ScienceHard
Biology
Ecology

Which zone of a lake is characterized by the absence of light and producers?

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ScienceHard
Biology
Ecology

The pyramid of biomass is inverted in:

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ScienceHard
Biology
Ecology

What is 'Mimicry'?

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ScienceHard
Biology
Ecology

What is the main objective of the 'Montreal Protocol'?

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ScienceHard
Biology
Ecology

Which term refers to the maximum reproductive capacity of an organism under optimal conditions?

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ScienceHard
Biology
Ecology

What happens in 'Hydrosere'?

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ScienceHard
Biology
Ecology

What is 'In-situ' conservation?

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ScienceHard
Biology
Ecology

Which of the following describes 'Bioaccumulation'?

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ScienceHard
Biology
Ecology

What is the term for a group of different populations living together and interacting in an area?

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ScienceHard
Biology
Ecology

Which factor is density-dependent in population regulation?

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ScienceHard
Biology
Ecology

What is the name of the process where nitrates are reduced to nitrogen gas by bacteria?

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ScienceHard
Biology
Ecology

Which of the following is a 'Top-down' control in an ecosystem?

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ScienceHard
Biology
Ecology

What does the 'Energy Pyramid' represent?

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