Question # 1

A network of all the feeding relationships in an ecosystem is called.

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Food chain

Food web

Trophic level

Energy flow

All herbivore animals are.

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Grass eater

Parasites

Predators

Prey

The lowest trophic level of an ecosystem always includes.

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Herbivores

Carnivores

Producer

Decomposers

One of these cycles is also nutrients cycles.

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Biogeochemical cycles

Carbon cycles

Water cycles

Nitrogen cycles

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

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Kelvin

Lamark

Charles Elton

Charles Darwin

The basic tropic level of all food chain is.

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Producers

Consumers

Decomposers

Reducers

_________ atom is the principal building block of many kind of biomolecules.

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Oxygen

Carbon

Hydrogen

Nitrogen

It is an example of primary consumers.

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Cattles

Snake

Lion

Tiger

Conversion of Nitrates into nitrogen gas is called.

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Denitrification

Assimilation

Ammonification

Nitrogen fixtation

Biospher surrounding the earth is about:

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17 km

18 km

19 km

20 km

An example of carnivores plant is.

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Mosses

Ferns

Rose plant

Sundew

Rabbit is a :

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Producer

Herbivore

Cornivore

Tertiary Consumer

Which form of nitrogen is taken by the producer of the Ecosystem?

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Nitrogen Gas

Ammonia

Nitrage

Nitrates

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

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