Question # 1

Organisms in the ecosystem that are responisble for recycling of plant and animal wastes are:

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Producers

Consumers

Decomposers

Compititors

In 1927,................ developed the concept of ecological pyramids.

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Kelvin

Lamark

Charles Elton

Charles Darwin

Primary source of energy for all ecosystem is.

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Electricity

Sun

Fire

Nutrients

Example of Ectoparasite is:

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Becteria

Virus

Ascaris

Mosquito

It is an example of primary consumers:

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Cattles

Snake

Lion

Frog

Livingof Nitrogen bacteria in the roots nodules of Leguminous plant is an example of :

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Predation

Parasitism

Mutualism

Commensalism

Identify the correctly matched pair:

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Rainfall biotic factors in ecosystem

Global warming formation of fossil fuels

Renewable natural resources air

Corn secondary consumer

Biospher surrounding the earth is about:

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17 km

18 km

19 km

20 km

Nitrobactor bacteria converts nitrites into:

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nitrogen

nitrates

urea

ammonia

Living of nitrogen fixing bacteria in the roots nodules of Leguminous plant is an example of.

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Predation

Parasitism

Mutualism

Commensalism

Example of Endoparasite is:

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Plasmodium

Mosquito

Leech

Lices

In the food chain"grass......rabbit....... fox..............bear...........mushroom", how many types of decomposers are present"?

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1

2

3

4

Which is tertiary carnivore.

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Deer

Frog

Snake

Lion

Which of the following organisms are decomposers?

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Fungi

Algae

Bacteria

Both a and c

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Biology 10th Class English Medium Chapter 16 Online Test MCQs With Answers

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