Question # 1

Organism in ecologicla communits interact with one anothe rin....... major ways.

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Two

three

Four

Five

------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature.

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Waisting of energy

Destroy fo energy

Transfer of energy

Produce of energy

The feeding level of an organism in an ecosystem is called.

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Food Web

Food chain

Trophical level

Secession level

Consumers that actively hunt other organism are called.

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Prey

Competitor

Predator

Symbiont

Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.

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Hydrogen

Iodine

Oxygen

Nitrogen

During respiration by the animals, whihc gas is released into the atmosphere.

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Nitrogen

Oxygen

Carbon Di oxide

Hydrogen

Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980

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100

200

300

400

A relationship where two species live togetehr closely is called.

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Mutualism

Commensalism

Symbiosis

Hebitate

During the combustion of fossil fuel. Which gas is ener the atmosphere.

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Nitrogen

Oxygen

Carbon di oxide

Hydrogen

The organisms upon whihc a redator feeds are called.

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Prey

Carnivores

Herbivores

Producers

--------occupy the b ase of pyramid.

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Producers

Primary canivores

Herbivores

Top carnivores

Which is the solution of environmental problems.

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Reducing pollution

Plantation

Protection of endangered

All these

A symbiotic relationship in whihc both speciesl get benefit is called.

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Commensalism

Hebitate

Mutualism

Symbiosis

A food chain starts from the..........

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Primary carnivores

Herbivores

Producers

Top carnivores

------------- gas is released when dead organisms are decomposed by the decomposers.

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

The energy of the Sun in traped as chemical energy by.

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Tertiary consumers

Primary consumers

Producers

Secondary consumers

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