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

Question # 1

An epiphyte is an example of:

Choose an answer

Parasitism

Mutualism

Commensalism

Symbiosis

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Question # 2

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 # 3

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 # 4

Which of the following is not an example of green house gas?

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CO₂

Methane

Oxygen

Nitrous oxide

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Question # 5

The type of symbiotic relationship in which one member get benefit and other is unaffected is called.

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Parasitism

Mutualism

Commensalism

Predation

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Question # 6

It is an example of endoparasite:

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mosquitoes

leeches

lice

plasmodium

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Question # 7

Formation of Nitriates and nit5rates from ammonia is called.

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Nitrification

Ammonification

Denitrification

Assimilation

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Question # 8

the type of symbolic association in which partner gets benefits while other is neither benefited nor harmed is called:

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Commensalism

Mutualism

Parasitism

Predation

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Question # 9

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

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Oxygen

Carbon

Hydrogen

Nitrogen

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Question # 10

Which one of the following is a tertiary consumer:

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Owl

Larwa of butterfly

Deer

Rabbit

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Question # 11

Example of Endoparasite is:

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Plasmodium

Mosquito

Leech

Lices

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Question # 12

The basic tropic level of all food chain is.

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Producers

Consumers

Decomposers

Reducers

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Question # 13

The base of food chain is always formed by:

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Producers

Consumers

Decomposrs

Heterotrophs

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