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

Question # 1

A group of organisms of same species living in a particular area is called.

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Population

Coummunity

Abiotic factor

Ecology

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Question # 2

Abiotic component of the ecosystem is.

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Producers

Consumers

Decomposers

Light

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Question # 3

The utilization of nitrates by organisms is called.

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Nitrification

Ammonification

Assimilation

Denitrification

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Question # 4

Endoparasite is.

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Leech

Lices

Ascaris

Mosquito

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Question # 5

At the end of a long food chian the energy will be.

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Will more

As same as at start

Will less

Zero

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Question # 6

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called.

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Nitrification

Denitrification

Nitrogen fixation

Assimilation

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Question # 7

The total amount of living matter in an ecosystem at any time is called.

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Biomass

Energy

Food Chain

Food web

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Question # 8

Organisms that make their own food with help of sunlight, CO and H₂O are called.

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Consumers

Producers

Decomposers

Predators

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Question # 9

The study of the ralationship between orgaisms and their environment called:

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Biology

Microbiology

Ecology

Genetics

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Question # 10

The only source of energy for all ecosystems of the world is.

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Sun

Moon

Plants

Ocean

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Question # 11

Conversion of urea and uric acid into Ammonia is called.

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Assimilation

Nitrogen fixation

Ammonification

Biological fixation

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Question # 12

The consumersthat eat animal flesh as well as plants and plant products are called:

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Herbivors

Carnivores

Omnivores

Insectivores

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