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10th Class Biology Chapter 16 Man and His Environment English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
All populations collectively are called:
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Species
Biome
Community
Ecosystem
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Question # 2
R-3 means.
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Less use
Reuse
Recycle
Refuse
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Question # 3
In an ecosystem the flow of _________ is one way, while _________ is/are constantly recycled.
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Minerals, energy
Energy minerals
Oxygen, Energy
Glucose, water
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Question # 4
Example of Endoparasite is.
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Plasmodium
Mosquito
Leech
Lices
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Question # 5
The materials flow forms one trophic level to the next by means of:
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food chains
food webs
energy pyramids
both A and B
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Question # 6
It is an example of primary consumers:
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Cattles
Snake
Lion
Frog
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Question # 7
Which one of the following is tertiary consumer.
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Owl
Larva of burtterfly
Deer
Rabbit
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Question # 8
The factor of an ecosystem is:
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light
algae
bacteria
producers
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Question # 9
In 1927,................ developed the concept of ecological pyramids.
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Kelvin
Lamark
Charles Elton
Charles Darwin
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Question # 10
A symbiotic interaction in which both partners get benefits.
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Mutualism
Commensalism
Parasitism
Predation
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Question # 11
The utilization of nitrates by organisms is called.
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Nitrification
Ammonification
Assimilation
Denitrification
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Question # 12
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 # 13
The nitrate forming bacteria are.
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Rhizobium
Nitrosomonas
Nitrobacter
Cocci
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